写出下列动词的第三人称单数形式和过去式

1.do__does did__ _____ 2.play___plays played______3.go__goes__ __went____
4.visit__visits__ _visited___ 5.have has had 6.stay stays stayed
7,study studies studied 8.see sees saw 9.be is was 10.clean cleans cleaned 11.enjoy enjoys enjoyed 12.write wirtes wrote

1does did 2plays played 3 goes went 4 visits visited
5has had 6 stays staied 7studies studied 8sees saw 9am/ is/ are was/were
10cleans cleaned 11enjoys enjoyed writes wrote

1. does did
2 plays played
3 goes went
4 visits visited
5 has had
6 stays stayed
7 studies studied
8 sees saw
9 is was
10 cleans cleaned
11 enjoys enjoyed
12 writes wrote

does,did
plays played
goes went
visits visited
has had
stays stayed
studies studied
sees saw
am->is->was,are->is->were
cleans cleaned
enjoys enjoyed
writes,wrote