彼は随分遅いので、途中で事故に遭ったのかもしれない。の英語

Since he is very late, he may have met with an accident on his way.

Possibly, the accident will delay his arrival.

He was late as a result of the accident.

He is delayed due to traffic caused by an accident.

His delay made the situation all the worse.

He managed to get there in time.

He may have missed the last train.

He left early in order not to be late.

He being late, we started without him.

It looks like he may be late for work.

He is not on time.

As is often the case with him, he was late.

That is the reason he was late.

It was typical of him to arrive late.

It is certain that he is coming late.

As is often the case with him, he was late again.

He forgot to say he would be late, and to make matters worse, the traffic was bad.

he was excusably late

It was typical of him to arrive late.

He's afraid that he might be late.

He's worried that he might be late.

He is afraid of being late.

He came home fairly late last night.

He sent word that he'd be delayed.

He had enough to do to catch up on his work.

It is certain that he is coming late.

He turned up an hour later.

He turned up hour later.

He sometimes comes home late.

He made many excuses for being late.