Past simple tense

Present perfect and present perfect continuous tenses

Future continuous tense

Past perfect tense

To do

To be

To will

To have

By adding -s

By adding -ed

By adding -ing

By adding -en

They have their own unique forms

They follow the same rule as regular verbs

They end in -ing

They are always the same as the base form

To be

To have

To do

To will

-ing

-en

-s

-ed

For actions that started in the past and continue into the present

For actions that will happen in the future

For actions that happened in the distant past

For actions that are happening right now

For actions that will start in the future

For actions that are hypothetical

For actions that are completed

For actions that started in the past and continue into the future

Walking the dog

Breaking a leg

Driving a car

Talking to someone

youtube.com/grammarlessons

youtube.com/learnenglish

youtube.com/englishgrammarspot

youtube.com/englishlessons