Form of the present simple with the infinitive form of the verb (without to). Add "s" in the third person singular he/she/it

I like, You like, He/She/It likes, We like, They like

Some verbs are irregular: have,be

I have, You have, She/He has, We have, They have
I am, You are,He/She/It is,We are, They are

Spelling Changes

Verbs ending in o,s,ch,sh,x add -es for the third person singular.

He goes, She misses, He eats, She knows

Questions

Form yes/no questions with do+ the infinitive (without to). Use does for he/she/it.

Do you like french food? Does she like french food?

Negatives

Form negatives with do not+ the infinitive(without to). Use does not for he/she/it.

I do not like french food. She does not like french food.

Short forms : I don't. She doesn't

Present simple meaning

The simple present can describe :

1. Habitual actions ( I usually get up at 7am.)
2. Actions and situations that are generally or usually true. (We like ice cream)
3. Facts which are always true (The world is rounded)

and the present simple also has some future meanings.
We often use the present simple to talk about events in the future which are part of a timetable,programme or calendar (Jim's plane leaves at 16.00pm, Our headteacher retires next year)