9.2 Past Tense short forms in informal speech

Question 1

Did you have breakfast this morning?
Translate to short form

Answer 1

けさ、あさごはんをたべた？

Question 2

Yes, I did eat.
No, I did not eat.

Answer 2

うん、たべた。
ううん、たべなかった。

Question 3

Were you busy last week?

Answer 3

せんしゅうはいそがしかった？

Question 4

No, I wasn’t busy, I had free time.

Answer 4

ううん、いそがしくなかった。ひまだった。
Note that だった cannot be dropped (unlike だ)