Re: reported speech
Yoong Liat wrote:He said, "John is honest."
In reported speech, it is He said that John was honest.
Can I report the sentence as He said that John is honest if he knows that John is an honest person.
Many thanks.
When we use reported speech, YL, it has nothing to do with actual tense shifts. In other words the change to a past tense is a change in FORM only and this change occurs ONLY to let listeners know that the speech is reported as opposed to a direct quotation.
So of course you can use 'is' in situations like this. There are, of course, time considerations, as noted by SullyFish, that affect our choices.