Present simple:
 
Use
Form
 
Use:
 
1. We use to present simple to talk about general truths. 
Example: Fish live in the sea.
2. We use the present simple to express routines. 
Example: Children play with toys.
 
Form:
 
Present simple: affirmative, negative, questions.
 
Affirmative form
- To make affirmative sentences we write the base form of the verb. For the third person singular (he/she/it) we write the base form + -s. Example: I write  - she writes.
 
- 3rd person singular (he/she/it) spelling rules.
 
    	- Verbs ending in -s, -ch, -sh, -x, or -o add -es, not -s. Example: I watch  -  he watches.
    	- For verbs ending in consonant + y, y becomes ie before -s. Example: I study  - she studies.
 
Negative form:
 
- 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 in the sea.
    	You don't live in the sea.
    	He/she/it doesn't live in the sea.
    	We don't live in the sea.
   	They don't live in the sea.
 
Questions:
 
- To make questions we write: do + subject +  base form. For the third person singular (he/she/it) we write: does + subject + base form.
- Examples:
    	Does he/she/it live on land?
    	Do we live on land?
    	Do you live on land?
    	Do they live on land?