When to use the present simple

UseExample
Habits and routinesI go to work every day. She drinks coffee in the morning.
Facts and general truthsThe sun rises in the east. Water boils at 100°C.
Permanent situationsHe lives in Madrid. They work at a hospital.
Likes and dislikesI love chocolate. She hates Mondays.
Signal words: always, usually, often, sometimes, never · every day/week/morning · on Mondays, at the weekend, in the morning — these words signal present simple.

Affirmative forms

PronounVerb formExample (work)
Ibase verbI work.
Youbase verbYou work.
He / She / Itbase verb + -s / -esHe works. / She goes.
Webase verbWe work.
Theybase verbThey work.

Third person singular: he / she / it

Only he, she, it change the verb. The rules are the same as for plural nouns:

RuleWhenExamples
Add -sMost verbswork → works · like → likes · play → plays
Add -esAfter -s, -sh, -ch, -x, -z, -owatch → watches · go → goes · do → does
Change -y → -iesConsonant + ystudy → studies · carry → carries · fly → flies
Irregularhavehave → has
Only he/she/it gets -s! Never add -s to I, you, we, they: "They works" ✗ → "They work" ✓ · "I likes coffee" ✗ → "I like coffee" ✓. Only the third person singular (he/she/it) takes the -s ending.

Exercise

1. She ______ to school every day.

2. They ______ in a big house.

3. He ______ English and Spanish.

4. I ______ coffee every morning.

5. My sister ______ a cat and a dog.