Past Participle
Present Perfect +
Present Perfect -
Present Perfect ?
100
watch

Watched

100

I/play/football before.

I have played football before.

100

I/not study/for the English exam.

I have not studied for the English exam.

100

you/ever/call/for an ambulance.

Have you ever called for an ambulance?

200

Play

played
200

They/study/for the English exam.

They have studied for the English exam.

200

I/not watch/my favorite/series/lately.

I haven't watched my favourite series lately.

200

Have/ever/be/San Francisco

Have you ever been to San Francisco?

300

become

become

300

You/ to accept / the scholarship.

You have accepted the scholarship.

300

I/ not travel / to the US /before.

I have not travelled to the US before.

300

Feed/dog/yet?

Have you fed the dog yet?

400
dance
danced 
400

I/homework/do/maths/already

I've already done my maths homework.

400

I/not watch/yet/cartoon/new/

I have not watched the new cartoon yet.

400

How long/she/study/there

How long has she studied there?

500

write

written

500

Neil's incredible! He/ learn/ Spanish/ Chinese/ French/ and/already

Neil's incredible! He has already learned Spanish, Chinese and French.

500

I/not perform/the dance/never.

I have never performed the dance.

500

Have /ever/ you/  travel to the US?

Have you ever travelled to the US?