彼はかなり長い時間そこに滞在していた。の英語

He stayed there some time.

He did a good bit of waiting.

He sat there for quite a long while [for quite some time].

He has been waiting here some time.

He's been waiting here for a long time.

He's been waiting here for quite a while.

I waited for him for a long time.

He prided himself on his punctuality.

He's sometimes a bit lax with time.

He lost track of time.

He had enough to do to finish it in time.

He was lying down for a while.

It was many hours before he came to.

It was many hours before he come to.

He was hoping for this moment for a long time.

I'm sure that he'll come on time.

He devoted much time to study.

He devoted a lot of time to study.

There was a long interval before he replied.

He only has a little time left here.

He seemed to have been working for a long time.

He has lain there for an hour.

He came spot on time.

He spoke for the entire hour.

I had not waited long before he arrived.

He made his appearance at a good [the right] time.

He had to work as hard as he could to finish it in time.

It had been a long time since he played a game for that long.

He often spends his time idly.

He cannot have gone so far in such a short time.