To form the Present Simple Tensewe use the verb's base form (go, work,speak, study). In 3rd person singular (he, she, it), the base form of the verb takes -s/es. (Auxiliary verbs "be," "do," "have", which can also be used as main verbs, are exceptions.)
Affirmative form
I
you work
we
they
he/she/it works /-s/
go - goes /-es/
watch - watches /-es/
play - plays /-s/
study - studies /-es/
Negative form
I
you DO NOT /don't/
we WORK
they
he/she/it DOES NOT
/doesn't / WORK
1. She doesn't often go to the cinema.
2. I don't get up early at the weekend.
3. They don't speak English very well.
Interrogative form
I
DO you WORK?
we
they
DOES he/she/it WORK?
I
you DO NOT /don't/
we WORK
they
he/she/it DOES NOT
/doesn't / WORK
1. She doesn't often go to the cinema.
2. I don't get up early at the weekend.
3. They don't speak English very well.
Interrogative form
I
DO you WORK?
we
they
DOES he/she/it WORK?