With I, you, we, they, use the base verb, no ending.
I / you / we / they
I work at Mosh Market.
You live near the park.
They buy their clothes here.
Not "They buys their clothes here." — say "They buy their clothes here.". No -s here, the -s is only for he, she, it.
Try it: We ___ at Mosh Market. (work / works) Answer: work — If you added -s ("works"), that ending is only for he/she/it. With we, keep the verb plain: We work at Mosh Market.
He / she / it
With he, she, it, add -s to the verb.
He works in an office.
She lives in Haffenville.
It rains a lot here.
Not "He work in an office." — say "He works in an office.". The -s is what tells you it is he, she, or it.
Try it: He ___ in an office. (works / work / working) Answer: works — With he, the verb takes -s: He works. work is the form for I, you, we and they, and working never stands on its own after he.
He / she / it: -es spelling
When the verb ends in s, x, ch, or sh, the ending is -es. Two more to learn by heart: go → goes and do → does.
She watches movies.
He pushes the door.
She fixes the car.
He goes to work.
Try it: She ___ movies. (watches / watchs / watch) Answer: watches — After ch the ending is -es, not -s: watches. watchs has the right idea with the wrong ending, and watch has no ending at all, which is the form for I, you, we and they.
He / she / it: -ies spelling
Look at the pattern: study → studies · try → tries · fly → flies. The y becomes ies. But if a, e, i, o, or u comes right before the y, keep the y and just add -s: play → plays.
She studies English.
He tries hard.
but: play → plays (an a before the y)
Try it: She ___ English every day. (studies / studys / study) Answer: studies — Close, the y changes: study → studies (not "studys").
Which ending?
Before each verb, ask: who? he/she/it → add -s. I/you/we/they → no ending.
He plays. / They play.
She works. / We work.
Not "He play. / They plays." — say "He plays. / They play.". Same verb, the subject decides the ending.
Try it: My sister ___ tea, but my parents ___ coffee. (drinks … drink / drink … drinks / drinks … drinks) Answer: drinks … drink — My sister = she → drinks (-s). My parents = they → drink (no ending).
Try it: My brother ___ in a bank, but his friends ___ in a shop. (works … work / work … works / works … works) Answer: works … work — My brother = he → works (-s). His friends = they → work (no ending). Who does it decides each one.
When to use it
Use this form for a habit, a fact, or a routine: something that is true again and again, not only right now.
I drink tea every morning. (routine)
Water is cold in winter. (fact)
We go to the market on Saturday. (habit)
Try it: One is a habit Amina repeats. One is a fact about the world. Which one is the habit? (Amina walks to work every day. / Haffenville has two parks.) Answer: Amina walks to work every day. — every day tells you she repeats it, so it is a habit. "Haffenville has two parks" is a fact: it is just true, not something anyone does again and again. The present simple covers both.