Simple Present Tense Use of s with verbs

Sometimes we use "s" with verbs

However, sometimes we do not use

Example

1. He speaks English
2. She speaks English
3. I speak English
4. We speak English
5. You speak English
6. They speak English
7. These people speak English
8. Vikas speaks English
9. Vikas and Iqbal speak English

When to use 's'?

1. If it is singular, we use 's'
2. If it is plural, we do not use 's'
3. But With 'I', 'You',  we do not use 's'

TYPE OF PRONOUN AND NOUNS

Which one is correct

He sings well

or

He sing well

She rides bike

or

She ride bike

We roam the city

or

We roams the city

You play the guitar

or

You plays the guitar

They play drums

or

They plays drums

My car runs on diesel

or

My car run on diesel

Cars runs on CNG

or

Cars run on CNG

Mosquitoes bite very hard

or

Mosquitoes bites very hard

The sun rises in the east

or

The sun rise in the east

Shakira dance very well

or

Shakira dances very well