■ 過去進行形
[解説]　
■　「・・・していた」は過去進行形で表わされます。
 
単数 複数
１人称 I was ...ing we were ...ing
2人称 you were ...ing you were ...ing
3人称 he was ...ing
she was ...ing
it was ...ing		 they were ...ing

■　疑問文，否定文のときは，現在進行形のときと同様の順序になります。

I wasn't ...ing
Was I ...ingなど。