years since
i know the verb here must be present and past . but what about something like

it´s been one year and 5 months since i dont know anything from you

thanks

Question

years since
i know the verb here must be present and past . but what about something like

it´s been one year and 5 months since i dont know anything from you

thanks

Answer

I'm sorry, "it´s been one year and 5 months since i dont know anything from you" doesn't make sense to me. I can't even rewrite it because I don't know what it means.

Here are some sentences that do make sense and illustrate good usages of "since."

"I don't know whether to offer you coffee or tea, since I don't know anything about you."

"It's been one year and five months since I last heard from you."