1-To talk of habits
He bites his nails.
2-To talk of nature
He makes friends easily.
Honey is sweet.
4-To talk of routine
I get up early in the morning everyday.
5-Something that happens at regular intervals
She gets a haircut every month.
Subject + v 1st form/s/es + object
I love my country.
He loves his country.
Subject + do/does + not + v1st form + object
We do not play football.
He does not play football.
do/does + subject + v1st form + object
Do you like apples?
Does he like apples?