optional backshifting criterion in non reported speech [duplicate]

In an indirect speech back shifting of tense is optional if what is said is still true. For example -- Kate said that she is not well. ( Here non change in tense because Kate is still not well at the time of reporting.)

My question is -- Is back shifting optional in non reported speech as well ? Such as "Kate found that the shop is closed." (Is this sentence correct if the shop is still closed at the time of reporting. ?)

Solution 1:

Yes, backshifting is optional both in reported speech and in cases like your example, as long as the subordinate clause is still true and is relevant to the present.