Tenses in English

The English language has a total of twelve tenses. Namely:

Simple present

Present continuous

Present perfect

Present perfect continuous

Simple past

Past continuous

Past perfect

Past perfect continuous

Simple future

Future continuous

Future perfect continuous

Simple present tense is used to denote something that is occurring right now. 

Also, it is used to represent something that happens regularly.i.e. Routines

For example:

The sun rises in the east.

I write.

you write.

we write.

they write.

he/she/it writes.

Note-"s” should be added with verb for he/she/it forms

Simple past tense is a verb tense that is used to talk about things that happened or existed before now. 

Example: 

I wrote 

he wrote

 she ate

it ran

they won

we won

Note- format: subject+verb3

simple future tense-  will indicate something that will occur in future

Examples-

I will do

he will eat 

they will study

Note- general format : Subject+will+verb1

 Present continuous tense- 

This tense is especially used to express something that is hapening right now and it is also continuing.