お願いします！ 1. 複文に書き換えてください He is sure of succeeding

お願いします！

1. 複文に書き換えてください

He is sure of succeeding in his undertaking.

2. 仮定法の文に書き換えてください

I am sorry I can't go.

3. 仮定法を用いて書き換えてください

I did not help him, and he is not happy.

No.2 ベストアンサー 回答者： Alice2020 回答日時： 2016/05/19 17:54

He is sure of succeeding in his undertaking.

=> He is sure that he will succeed in his undertaking.
助動詞の後は動詞の原形(succeed)です



I am sorry I can't go.
=>I wish I could go.



I did not help him, and he is not happy.
=>If I had helped him,he would be happy.
If節は過去のこと、帰結節は現在のことです。

No.1 回答者： marbleshit 回答日時： 2016/05/19 14:41

1. He is sure that he will success in his undertaking.

2. I wish I could go.

3. I wish I could have helped him.