I/we/you/they play football. Subject + Infinitive of the verb.
He/she/it plays football. In the 3rd person Singular (he, she, it - or a name) we add “s” to the
verb in (+) sentences.
Use of the auxiliary do (and does for “he-she-it)
I/we/you/they don't play football.
He/she/it doesn't play football
Do I/we/you/they play football?
Does he/she/it play football?
He brushes his teeth everyday
I play the guitar twice a week
I do the housework on Saturdays
To be (am, is, are) + Infinitive of the verb (+ing)
I am playing volleyball.
He/she/it is playing volleyball.
We/you/they are playing volleyball.
I am not playing volleyball.
He/she/it isn't playing volleyball.
We/you/they aren't playing volleyball.
Am I playing volleyball?
Is he/she/it playing volleyball?
Are we/you/they playing volleyball?
Actions happening at the moment of
Our teacher is running now
Fixed plans in near future
The Smiths are leaving on Saturday
His father is working at night
Actions happening around the moment of
speaking (longer actions)
I am working in a pizza
shop this semester.