Looking on the internet deeply has found these results:

He said he could come is the most popular phrase on the web.

I thought he might be at office 10 results on the web	He said he could come 14,720 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	He said he could come that night . He said,'I may buy a new car.' He said he might buy a new car . He said,'I might go to Denver.' He said he might go to Denver. Called and left message. Robert called back within 30 min. I needed a tree cut down. He said he could come out the next day. He arrived on time and cut down �... Dec 24, 2014 ... He said he could come over to help us set up. We may go to Truro for the weekend. They said they might go to Truro for the weekend. Within 15 minutes I received a call from John at Integrity Tree Care, Inc. After talking to John he said he could come out on Christmas day to take a look at the�...

I thought he might be at office

10 results on the web

He said he could come

14,720 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

He said he could come that night . He said,'I may buy a new car.' He said he might buy a new car . He said,'I might go to Denver.' He said he might go to Denver.
Called and left message. Robert called back within 30 min. I needed a tree cut down. He said he could come out the next day. He arrived on time and cut down �...
Dec 24, 2014 ... He said he could come over to help us set up. We may go to Truro for the weekend. They said they might go to Truro for the weekend.
Within 15 minutes I received a call from John at Integrity Tree Care, Inc. After talking to John he said he could come out on Christmas day to take a look at the�...