Subject + Verb + the rest of the sentence...
If the subject of the sentence is "He - She - It", you add "S" at the end of the verb. E.g. Speak > Speaks.
If the verb ends in "Ch - Sh - Ss - X - Z - Vowel", you add "Es" to the verb. E.g. Go > Goes.
If the verb ends in "Y", you replace it by "I" + "Es", except for "Play - Enjoy - Say", since before the "Y" a vowel appears. E.g. Study > Studies - Play > Plays.
If the subject of the verb is "I - You - We - They", the verb is written in its infinitive form, that is to say, unchanged.
Examples
She plays volleyball every day.
Subject "She" = Verb with "S" at the end.
British
American
Tom watches TV at night on Sundays.
Subject "He (Tom)" = Verb with "Es" at the end.
British
American
My parents like fish and chips.
Subject "They (My parents)" = Verb doesn't change.
British
American
I live in Canada.
Subject "I" = Verb doesn't change.
British
American
Subject + Don't - Doesn't + Verb (infinitive) + the rest of the sentence.
Remember
I - You - We - They + Do Not= Don't + Infinitive Verb + the rest of the sentence.
If the subject of the sentence is "I - You - We - They", you write "Do Not" or the short form "Don't" before the verb, which is written in its infinitive form, that is to say, without "S" at the end of it.
He - She - It + Does Not= Doesn't + Infinitive Verb + the rest of the sentence.
If the subject of the sentence is "He - She - It", you write "Does Not" or the short form "Doesn't" before the verb, which is written in its infinitive form, that is to say, without "S" at the end of it.
Examples
I don't like football.
British
American
Tina doesn't study hard.
British
American
They do not write clearly.
British
American
He does not know Emily.
British
American
Do - Does + Subject + Verb (Infinitive) + the rest of the sentence.
Remember
Do + I - You - We - They + Verb (Infinitive) + the rest of the sentence.
In the interrogative form the auxiliary "Do" is written before the subject "I - You - We - They" and the verb without "S" since it is written in its infinitive form.
Does + He - She - It + Verb (Infinitive) + the rest of the sentence.
In the interrogative form the auxiliary "Does" is written before the subject "He - She - It" and the verb without "S" since it is written in its infinitive form.
Examples
Do your friends live near you?
Subject "your friends" = "They".
British
American
Does Robert eat meat?
Subject "Robert" = "He".
British
American
Do they travel by bus?
British
American
1 Kevin _____ going to the theatre with his girlfriend.
2 _____ your parents go to work by bus?
3 My best friend _____ play hockey at the club.
4 We _____ know how it happened.
5 They _____ my brothers.
6 We use the Simple Present to refer to…
7 When the subject of the sentence is "he", "she" or "it", we add "–s" to the Verb.
8 I _____ English every day.
9 She _____ volleyball at school.
10 Emma _____ drive home.
11 _____ Tom go to school by bus?
12 _____ you speak French?
13 My mum doesn't _____ well.
14 They don't _____ early on Sundays.
15 In the Negative form, the main verb is always in infinitive.
