Present simple: 

- Use
- Form

Use: 

1. We use to present simple to talk about general truths. Example: The sun gives light to the Earth.
2. We use the present simple to express routines. Example: Teachers and students go to school from Monday to Friday.

Form: 

Present simple - affirmative 
- To make affirmative sentences we write the base form of the verb. For the third person singular (he/she/it) we write: base form + -s. Example: - write – she writes.

- 3rd person singular (he/she/it) spelling rules.

	- Verbs ending in -s, -sh, -ch, -x, or -o add -es, not -s. Example: watch – he watches.
	- For verbs ending in consonant + y, y becomes ie before -s. Example: study – she studies.

Present simple - negative: 

- To make negative sentences we write: don't  + base form. For the third person singular (he/she/it) we write: doesn't + base form.
- Examples:
	I don't live on Mars.
	He/she doesn't live on Venus.
	We don't live on Pluto.
	You don't live on Mercury.
	You don't live on Jupiter.

Present simple - interrogative: 

- To make interrogative sentences we write: do + subject +  base form. For the third person singular (he/she/it) we write: does + subject + base form.
- Examples:
	Does he/she live on Saturn?
	Do you live on Saturn?
	Do we live on Uranus?
	Do they live on Jupiter?