Simple Present Tense vs. Simple Past Tense
🔤 1. The biggest question
The simple present and simple past are both used with normal verbs, but they talk about different times.
Compare:
I work at a bank.
I worked at a bank last year.
The first sentence describes the present or usual situation.
The second sentence describes something that happened in the past.
The easiest rule is:
Simple present → now, usually, or generally true
Simple past → happened and finished before now
📘 2. Simple present
We use the simple present for:
- habits
- routines
- repeated actions
- things that are usually true
- general facts
- current situations that are generally true
Examples:
I drink tea every morning.
She works at a hospital.
They visit their parents every weekend.
Water boils at 100°C.
🧩 3. Simple past
We use the simple past for something that:
- happened before now
- started and finished in the past
- is no longer happening
- happened at a specific past time
Examples:
I drank tea this morning.
She worked at a hospital last year.
They visited their parents yesterday.
He bought a new laptop two days ago.
The action is finished.
🔍 4. The easiest difference
Think about when the action happens.
Simple present
I walk to work every day.
Walking to work every day is my usual routine.
Simple past
I walked to work yesterday.
That walk happened in the past and is finished.
🧠 5. Present = usual / past = finished
A very useful memory rule:
Simple present → usually happens
Simple past → already happened
For example:
She cooks dinner every evening.
→ usual activity
She cooked dinner last night.
→ finished past activity
🗂️ 6. Simple present: positive forms
For normal verbs:
I / You / We / They
Use the basic verb when the subject is I, you, we, or they:
I work.
You work.
We work.
They work.
He / She / It
When the subject is he, she, or it, usually add -s/-es:
He works.
She works.
It works.
🎯 7. Simple past: positive forms
In the simple past, the verb usually has one past form for all subjects.
For example:
I worked.
You worked.
He worked.
She worked.
We worked.
They worked.
Do not write:
And do not use the present form for a finished past action:
💬 8. Compare all subjects
Using play:
| Subject | Simple Present | Simple Past |
|---|---|---|
| I | I play. | I played. |
| You | You play. | You played. |
| He | He plays. | He played. |
| She | She plays. | She played. |
| It | It plays. | It played. |
| We | We play. | We played. |
| They | They play. | They played. |
Notice:
Present
He/She/It → plays
I/You/We/They → play
Past
Everyone → played
🔤 9. Regular verbs
Many verbs form the past with -ed.
| Present | Past |
|---|---|
| work | worked |
| play | played |
| watch | watched |
| clean | cleaned |
| open | opened |
| visit | visited |
| help | helped |
| cook | cooked |
Examples:
I work here now.
I worked there last year.
📘 10. Irregular verbs
Some verbs do not use -ed.
You need to learn their past forms.
| Present | Past |
|---|---|
| go | went |
| come | came |
| eat | ate |
| drink | drank |
| see | saw |
| buy | bought |
| take | took |
| make | made |
| have | had |
| get | got |
| give | gave |
| write | wrote |
Examples:
I go to the office every day.
I went to the office yesterday.
🧩 11. One very important rule for the past
In a positive simple past sentence, use the past form of the verb.
She visited her friend.
He bought a book.
They went home.
But when we use did or didn't, the main verb goes back to its basic form.
She didn't visit her friend.
Did he buy a book?
They didn't go home.
This rule is extremely important.
🔍 12. Simple present: negative
In a simple present negative, use:
don't / doesn't + basic verb
I / You / We / They
I don't work here.
You don't work here.
We don't work here.
They don't work here.
He / She / It
He doesn't work here.
She doesn't work here.
It doesn't work.
Remember:
doesn't + basic verb
Not:
Correct:
She doesn't work.
🧠 13. Simple past: negative
In a simple past negative, use:
didn't + basic verb
Use didn't with every subject.
I didn't work.
You didn't work.
He didn't work.
She didn't work.
We didn't work.
They didn't work.
Remember:
didn't + basic verb
Not:
Correct:
She didn't work.
🗂️ 14. Compare the negative forms
Simple present
She doesn't work on Sundays.
The sentence above describes her usual schedule.
Simple past
She didn't work last Sunday.
The sentence above describes one finished past situation.
Notice:
doesn't + work
didn't + work
The main verb is basic in both structures.
🎯 15. Simple present: questions
To make a simple present question, use:
Do/Does + subject + basic verb?
Examples:
Do you work here?
Does she work here?
Do they live nearby?
Does he play tennis?
💬 16. Simple past: questions
To make a simple past question, use:
Did + subject + basic verb?
Examples:
Did you work yesterday?
Did she visit her friend?
Did they live here before?
Did he play tennis yesterday?
Notice:
Did + basic verb
Not:
Correct:
Did she visit?
🔤 17. Do, does, and did
Here is an important way to remember the difference.
Simple present
Use do when the subject is I, you, we, or they.
Use does when the subject is he, she, or it.
Examples:
Do you work?
Does she work?
Simple past
Use did with every subject.
Examples:
Did I work?
Did you work?
Did she work?
Did they work?
📘 18. Complete form summary
Using the verb work:
| Subject | Present Positive | Present Negative | Present Question | Past Positive | Past Negative | Past Question |
|---|---|---|---|---|---|---|
| I | I work. | I don't work. | Do I work? | I worked. | I didn't work. | Did I work? |
| You | You work. | You don't work. | Do you work? | You worked. | You didn't work. | Did you work? |
| He | He works. | He doesn't work. | Does he work? | He worked. | He didn't work. | Did he work? |
| She | She works. | She doesn't work. | Does she work? | She worked. | She didn't work. | Did she work? |
| It | It works. | It doesn't work. | Does it work? | It worked. | It didn't work. | Did it work? |
| We | We work. | We don't work. | Do we work? | We worked. | We didn't work. | Did we work? |
| They | They work. | They don't work. | Do they work? | They worked. | They didn't work. | Did they work? |
This table is useful to remember.
🧩 19. Compare the three forms
Let's use watch.
Simple present
She watches TV every evening.
Simple present negative
She doesn't watch TV every evening.
Simple present question
Does she watch TV every evening?
Simple past
She watched TV last night.
Simple past negative
She didn't watch TV last night.
Simple past question
Did she watch TV last night?
Notice the main difference:
Present positive → watches
Past positive → watched
Present negative/question → does + watch
Past negative/question → did + watch
🔍 20. Time words: simple present
These words often indicate a simple present meaning:
- every day
- every week
- every month
- usually
- always
- often
- sometimes
- never
- on Mondays
- each morning
Examples:
I exercise every morning.
She usually takes the bus.
They often eat at home.
🧠 21. Time words: simple past
These words often indicate a simple past meaning:
- yesterday
- last night
- last week
- last month
- last year
- two days ago
- three weeks ago
- in 2020
- when I was young
- earlier today
Examples:
I exercised yesterday.
She took the bus last week.
They ate at home last night.
🗂️ 22. “Every day” vs. “yesterday”
Here is one of the easiest comparisons.
I walk to school every day.
→ usual routine
I walked to school yesterday.
→ finished past event
🎯 23. “Usually” vs. “last week”
He usually plays tennis on Saturday.
→ regular activity
He played tennis last Saturday.
→ one finished past event
💬 24. “Often” vs. “yesterday”
She often cooks at home.
→ repeated habit
She cooked at home yesterday.
→ one past event
🔤 25. “Ago”
Ago shows how long before now something happened.
Use the simple past when the sentence has ago.
Examples:
I moved here two years ago.
She called me ten minutes ago.
They bought the house five years ago.
Not:
Correct:
I moved here two years ago.
📘 26. Don't use the present form for a finished past event
If you are talking about a finished past event, don't use the present form.
Incorrect:
Correct:
Incorrect:
Correct:
Incorrect:
Correct:
🧩 27. Don't use the past when you mean a usual action
The opposite is also important.
If something happens regularly, use the simple present.
Incorrect (if you mean your usual routine now):
If you mean this is your usual routine, say:
But:
I went to work every day last week.
That sentence is possible because last week makes the routine a finished past period.
🔍 28. The meaning can change with the time
Look at:
I play football.
That sentence can mean playing football is my usual activity.
I played football.
That sentence means I played football in the past.
Add a time expression:
I play football every Sunday.
I played football last Sunday.
The time expression helps make the meaning clear.
🧠 29. Present vs. past with irregular verbs
Let's compare some common verbs.
| Present | Past |
|---|---|
| go | went |
| eat | ate |
| drink | drank |
| see | saw |
| buy | bought |
| take | took |
| come | came |
| make | made |
| get | got |
| write | wrote |
Examples:
We eat here every Friday.
We ate here last Friday.
She buys groceries every week.
She bought groceries yesterday.
They go there every month.
They went there last month.
🗂️ 30. Be careful with “was/were”
The simple past of the verb be is was/were. Normal verbs do not use was/were.
Compare:
She was tired.
She worked yesterday.
The first sentence uses the past form of be.
The second uses a normal past verb.
For a normal action:
Correct:
And for a negative normal action:
Correct:
🎯 31. Was/were vs. did
Here is an important decision.
Use was/were
Use was/were when the sentence gives:
- descriptions
- conditions
- identities
- locations
He was tired.
They were happy.
She was a student.
We were at home.
Use did
Use did with normal verbs:
Did he work?
Did they play?
Did she go?
Did you eat?
💬 32. Compare these sentences
She was tired yesterday.
The sentence above describes her condition.
She worked yesterday.
The sentence above tells us what she did.
Negative:
She wasn't tired yesterday.
She didn't work yesterday.
Question:
Was she tired yesterday?
Did she work yesterday?
🔤 33. Simple decision method
When choosing between simple present and simple past, ask:
Question 1
Is this usual, repeated, or generally true?
→ Simple present
He runs every morning.
Question 2
Did it happen and finish before now?
→ Simple past
He ran this morning.
Then ask:
Is it a normal verb?
If it is a normal verb, use:
present: do/does
past: did
Examples:
Does she work?
Did she work?
Is it the verb “be”?
If it is the verb be, use:
present: am/is/are
past: was/were
Examples:
Is she tired?
Was she tired?
📘 34. Common mistakes
(if you mean your current routine)
🧩 35. A complete comparison
| Simple Present | Simple Past | |
|---|---|---|
| Main idea | usual / repeated / generally true | finished before now |
| Positive | She works. | She worked. |
| Negative | She doesn't work. | She didn't work. |
| Question | Does she work? | Did she work? |
| He/She/It positive | verb + s | past verb |
| I/You/We/They positive | basic verb | past verb |
| Negative helping verb | do/does | did |
| Question helping verb | do/does | did |
| Common time words | every day, usually, often | yesterday, last week, ago |
🔍 36. Super-important form comparison
PRESENT
Positive: She works.
Negative: She doesn't work.
Question: Does she work?
PAST
Positive: She worked.
Negative: She didn't work.
Question: Did she work?
Notice:
Present positive: works
Past positive: worked
But after does/doesn't/did/didn't:
basic verb → work
🧠 37. The six basic forms
For normal verbs, remember these six patterns:
Simple Present
Positive
Subject + verb
Negative
Subject + don't/doesn't + basic verb
Question
Do/Does + subject + basic verb?
Simple Past
Positive
Subject + past verb
Negative
Subject + didn't + basic verb
Question
Did + subject + basic verb?
🗂️ 38. Easy memory guide
Think about time first.
USUAL?
→ Simple present
I work every day.
FINISHED PAST?
→ Simple past
I worked yesterday.
Then remember:
Present
do / does
Past
did
And:
does/did + basic verb
So:
Does she work?
Did she work?
Not: