問題文全文(内容文)：
助動詞　重要表現についての説明動画です

問題文全文(内容文)：
下記の文法を含む例文を解説しています。
・助動詞を含む受動態
・進行形、完了形の受動態
・句動詞の受動態
・使役動詞、知覚動詞の受動態

問題文全文(内容文)：
【問】
Saki, why don't you take some time off?
You ( ) too much lately.
① would work
② had worked
③ should have worked
④ have been working
(センター改)

【問】
Ever since they first met at the sports festival, Pat and Pam (　 ) each other.
① are emailing
② emailed
③ have been emailing
④ will email
(センター)

【問】
Nicole ( ) novels for about seven years when she won the national novel contest.
① had been writing
② has been writing
③ has written
④ is writing
(センター)

【問】
We ( ) playing baseball for about half an hour when it started to rain very heavily.
① had been
② have been
③ might be
④ would be
(センター)

【問】
I wonder if Stella has lost my number. ( ) her call for the last two hours.
① I'd expected
② I'll have expected
③ I'm expecting
④ I've been expecting
(センター)

問題文全文(内容文)：
曜日の前に「on」が付く理由を解説します。

概念を理解して、会話文に使っていきましょう！

問題文全文(内容文)：
今回は【強調】について解説しています。強調構文については、別の動画がありますのでそちらも併せてどうぞ。