Use the Present Simple for things that happen again and again (habits — the regular things you do, like brushing your teeth every morning) and for facts (things that are always true, like 'The sun is hot'). The verb keeps its base form — its first, simplest shape, with nothing added. But when the subject (the person or thing doing the action) is he, she, or it, you add the letter -s: 'I work.' 'She works.'
2. Detailed explanation
Start from zero. A verb is a word that shows an action (eat, work, play) or a state (live, like, know). The base form of a verb is its simplest, original shape — the shape you find in a dictionary: work, play, eat, live. The person or thing doing the action is the subject (subject = who or what the sentence is about). The Present Simple is the verb form we use for two kinds of things: actions that happen again and again — every day, every week — and facts, things that are always true. Compare: 'She is drinking coffee now' = one action, at this moment. 'She drinks coffee' = her habit — she does it regularly.
For most subjects, the verb stays in its base form: I work, we work, they work. But there is one famous rule. When the subject is he, she, it — or one person or one thing, like 'my father,' 'the train,' 'this book' — add the letter -s to the verb: He works, She plays, My father drives. Just remember: one other person or thing = verb + s. This little -s is the mistake beginners make most often, so check every sentence for it. A few verbs change more: verbs ending in -ch, -sh, -x, or -o add -es (watch → watches, go → goes); consonant + y changes to -ies (study → studies); and 'have' is special: he/she/it has.
Let's take sentences apart, word by word. 'She works in a hospital': She (the subject — one woman) + works (the verb work + s, because the subject is 'she') + in a hospital (the place where). 'The train leaves at 7:30': The train (the subject — one thing) + leaves (leave + s) + at 7:30 (the time). Trains follow a timetable — a fixed plan of times — so English uses this form for them.
To say 'no,' English brings in a helper verb: do (for I/you/we/they) or does (for he/she/it). Put do/does + not before the base verb: 'She does not (doesn't) like tea.' Notice: in 'She doesn't like,' the verb 'like' has no -s, because 'does' already carries the -s for 'she.' The -s appears once, on the helper, and the main verb goes back to its simple base form. Questions work the same way: put Do or Does at the front — 'Does she speak French?' Short answers repeat the helper: 'Yes, I do.' / 'No, she doesn't.' Words like always, usually, often, sometimes, never — words that tell how often — stand before the main verb: 'I always drink coffee in the morning.'
Remember this first: memorize three things. One: he/she/it (one person, one thing) → verb + s; everyone else → the plain base verb. Two: 'no' sentences and questions use don't/doesn't and Do/Does — and after does, the main verb loses its -s. Three: if an action happens regularly or is always true, the Present Simple is your tense.
3. Formula / structure
negative:
subject + do not (don't) / does not (doesn't) + base verb → I don't play. / She doesn't play. (no -s after doesn't!)
positive:
subject + base verb (+ -s for he/she/it) → I play. / She plays. / He watches TV.
question:
Do/Does + subject + base verb…? → Do you play? / Does he play?
short answer:
Yes, + subject + do/does. / No, + subject + don't/doesn't. → Yes, I do. / No, she doesn't.
Step by step — how to build a sentence:
Positive: 1) Start with the subject (She). 2) Take the base verb (work). 3) If the subject is he/she/it or one person/thing, add -s (works). Result: 'She works.' Negative: 1) Subject (She). 2) Add the helper 'doesn't' (does is the helper for she). 3) Use the base verb with NO -s (like). Result: 'She doesn't like tea.' Question: 1) Put Do or Does at the front (Does). 2) Add the subject (she). 3) Add the base verb (speak). Result: 'Does she speak French?'
4. When to use it
Daily routines: 'I wake up at 6:30.' / 'She goes to bed at eleven.'
Habits: 'He smokes.' / 'We play soccer on Fridays.'
General facts: 'The Earth goes around the sun.' / 'Fish live in water.'
Schedules and timetables: 'The store opens at nine.' / 'Class starts at ten.'
Jobs and regular duties: 'A doctor helps sick people.' / 'She teaches math.'
Likes and permanent states: 'I like pizza.' / 'They live in Texas.'
5. When NOT to use it
Don't use Present Simple for something happening right now: ✗ 'Look! It rains' → ✓ 'Look! It is raining.' (right now = present continuous)
Don't add -s twice: after does/doesn't the verb returns to the base form: ✗ 'She doesn't likes tea' → ✓ 'She doesn't like tea.'
Don't use do/does with BE: ✗ 'Does he is happy?' → ✓ 'Is he happy?'
Don't use Present Simple for a finished past action: ✗ 'Yesterday I go to work' → ✓ 'Yesterday I went to work.'
6. Positive examples
I drink coffee every morning.
She works in a hospital.
He plays the guitar very well.
We live in a small apartment.
The sun rises in the east.
My father drives a truck.
They speak three languages.
It rains a lot in Seattle.
The library opens at eight in the morning.
My grandmother makes wonderful bread.
Buses stop here every ten minutes.
He checks his email before breakfast.
7. Negative examples
I don't eat meat.
She doesn't like spicy food.
He doesn't watch TV on weekdays.
We don't work on Sundays.
They don't live near here.
It doesn't snow in Florida.
8. Questions
Do you speak English?
Does she live alone?
What time do you get up?
Where does he work?
How often do they exercise?
Does it rain much here?
9. Short answers
Yes, I do. / No, I don't.
Yes, she does. / No, she doesn't.
Yes, he does. / No, he doesn't.
Yes, we do. / No, we don't.
Yes, they do. / No, they don't.
10. Common mistakes
✗ She work in a bank✓ She works in a bank.When the subject is 'she' — one woman — the verb must wear the letter -s at the end. This is the most common mistake in this tense, so check for it in every sentence.
✗ He doesn't likes coffee✓ He doesn't like coffee.The word 'doesn't' already carries the -s for 'he.' The main verb after it must go back to its first, simple shape, with no -s.
✗ Does she plays tennis?✓ Does she play tennis?The same rule works in questions: 'does' carries the -s, so the verb after it stays in its simple shape.
✗ I no like pizza✓ I don't like pizza. (English does not use 'no' to make a verb negative. You need the helper 'don't'short for 'do not') before the verb.
✗ Do he drive?✓ Does he drive?Questions about he, she, or it start with 'Does,' not 'Do.' Use 'Do' for I, you, we, and they.
✗ She studys hard✓ She studies hard. (When a verb ends with a consonant + y, the y changes to i and we add -es: study → studies, try → tries. But play → plays, because a vowela) comes before the y.
✗ My dad haves a car✓ My dad has a car.The verb 'have' does not follow the normal -s rule. For he, she, and it, it changes its whole shape to 'has.'
11. American English notes
🇺🇸 American English
In American English the Present Simple is the same as everywhere, but listen for the rhythm: Americans say 'I don't know' (often 'I dunno' in fast speech), 'Doesn't matter,' and 'It depends.' The question 'Do you have…?' is the American standard (British speakers often say 'Have you got…?'). For schedules, Americans say 'The store opens at nine' exactly as taught here. One spelling note: verbs ending in -o take -es in the third person in US usage too — 'He does,' 'She goes.' And in casual American speech you will hear 'He don't' in some dialects and songs, but it is NOT standard — in school, work, and tests, always 'He doesn't.'
12. Similar grammar — comparison
Compare
Present Simple vs Present Continuous: both talk about the present, but Present Simple is for repeated or permanent things ('I take the bus every day'), while Present Continuous is for actions happening at this moment or around now ('I am taking the bus today because my car is broken'). The signal words differ too: every day, usually, always go with Present Simple; now, right now, today, this week go with the continuous. A useful test: if you can add 'every day' to the sentence naturally, choose the Present Simple.
13. Natural spoken English
'I usually grab a coffee on my way to work.'
'She doesn't live far — like ten minutes from here.'
'Do you guys want anything from the store?'
'It depends on the day, honestly.'
'He works nights, so he sleeps during the day.'
'We don't really watch the news anymore.'
14. Real-life examples
A job interview: 'I manage a small team, and I speak Spanish with our clients.'
A store sign: 'We open at 9. We close at 6.' → full sentences: 'The store opens at 9.'
Small talk: 'So, what do you do?' — 'I work in sales.'
A weather fact: 'It gets really cold here in January.'
Instructions and recipes: 'You add the eggs and mix well.'
On the phone: 'She doesn't answer her phone at work. Try her after five.'
15. Mini dialogue
ASo, Tom, what does your typical day look like?
BWell, I get up at six and I make breakfast for the kids.
AAnd your wife? Does she work?
BYes, she does. She works at a clinic downtown.
ADo you drive to work?
BNo, I don't. I take the train. It takes about forty minutes.
AThat sounds like a busy morning!
BIt is, but we like our routine.
16. Summary
Present Simple = habits, routines, schedules and facts: base verb everywhere, verb + -s with he/she/it, and do/does (with the base verb) for negatives and questions.
17. Practice exercises
Warm up with the first questions, then take the full quiz — every answer has a detailed explanation (parts 19–20 of this lesson: answer key + explanations live inside the quiz feedback).
18. The full quiz
50 questions, mixed formats, in difficulty order: easy → medium → intermediate → challenging → advanced.