Irregular Verbs
past participle be
been
What is the form for present perfect?
Subject + have/has + past participle
the act of using something in a careless or unnecessary way, causing it to be lost or destroyed
waste
1
tap
past participle of buy
bought
What is the form of present perfect in question?
Have/Has + Subject + Past Participle ?
to get rid of something by treating it as garbage
throw away
2
litter
past participle of eat
eaten
What is the form of present perfect with yet?
Subject + have/has + past participle + yet
the act of collecting goods or people from a particular place
pick up
electricity
past participle of forget
forgotten
What is the form of present perfect with already?
Subject + have/has + already + past participle
to use something again
reuse
4
pollution
past participle of know
known
What is the form of present perfect with just?
Subject + have/has + just + past participle
something that you do to fix something that is broken or damaged
repair
5
packaging