A
BE
BEEN
COST
COST
CUT
CUT
HURT
HURT
LET
LET
WRITE
WROTE
STAND
STOOD
SHAKE
SHAKEN
FORGET
FORGOTTEN
THINK
THOUGHT
UNDERSTAND
UNDERSTOOD
GROW
GROWN
HANG
HUNG
WEAR
WORN
MEAN
MEANT
TEACH
TAUGHT
CATCH
CAUGHT
BRING
BROUGHT
BITE
BITTEN
SWELL
SWELLED OR SWOLLEN
What is the grammar structure for Present Perfect Simple?
auxiliary verb have/has + main verb in past participle
When do we use the present perfect simple?
1. To talk about past experiences when you don't say when something happened.
2. with nonaction verbs to say that something started in the past and is still true now.
When do we use the present perfect continuous?
1. With action verbs to say that an action started in the past and is still happening now (unfinished actions).
2. for continuous actions that have just finished (but that have present results).
DREAMED
What is the grammar structure for Present Perfect Continuous?
auxiliary verb have/has+been+main verb with ing