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We make positive statements in the present perfect tense like this:
I / You/ We/They have+过去分词(pp.).
He/ She/ It has+过去分词(pp.).
We make negative statements in the present perfect tense like this:
I / You/ We/They have not+过去分词(pp.).
He/ She/ It has not+过去分词(pp.).
We ask and answer questions using the present perfect tense like this:
Have I/you/we/they +过去分词(pp.)?
Has he/she/it +过去分词(pp.)?
Yes, I/you/we/they have.
Yes, he/she/it has.
No, I/you/we/they haven’t.
No, he/she/it hasn’t.
He has cleaned his shoes.
Look at the pictures and make up sentences using present perfect tense.
close
go to bed
stop raining
take a bath
fall down
We form the past particles of regular verbs by adding –ed, just as what we do to form the simple past tense of these verbs.
Most verbs
+ed
finish--finished
Verbs ending in -e
+d
change-changed
Verbs ending in a consonant+y
-y+ied
carry—carried