それは重大な問題ではない。の英語

It's not a serious error.

It isn't a serious error.

That isn't a big problem.

That's not a big problem.

It's not a major problem.

It isn't a major problem.

That's not a big problem.

That isn't a big problem.

That's quite a problem.

That's a big problem.

It could be a serious problem.

I think that it is not that big of a deal.

It is not a problem.

That doesn't matter.

It doesn't really matter.

It's not that big of a problem.

That's not much of a problem.

That isn't much of a problem.

That is not much of a problem.

That is not an exaggeration.

It makes little difference.

That's not a problem.

That wouldn't be a problem.

That shouldn't be problem.

It should be okay.

It should be OK.

I don't think that would cause any problems.

That's not the issue.

That isn't a big deal.

That isn't significant.