Lesson Four p23

1.

see 過去	saw Unselect seen Unselect
see　過去分詞	saw Unselect seen Unselect

2.

do 過去	done Unselect did Unselect
do 過去分詞	done Unselect did Unselect

3.

eat 過去	eaten Unselect ate Unselect
eat 過去分詞	eaten Unselect ate Unselect

4.

go 過去	been Unselect gone Unselect went Unselect
go 過去分詞	been Unselect gone Unselect went Unselect
go 過去分詞 g_ _ _	been Unselect gone Unselect went Unselect

5.

come 過去	came Unselect come/been Unselect
come 過去分詞	came Unselect come/been Unselect