Насколько я помню мы уже обсуждали

Насколько я помню мы уже обсуждали этот вопрос и возможно даже ответ уже есть где-то в нашей переписке

Results (English) 1:

As far as I can remember we have already discussed this issue and maybe even answer is already there somewhere in our correspondence

Results (English) 2:

As far as I can remember, we have already discussed this issue and may even already have the answer somewhere in our correspondence

Results (English) 3:

as i recall, we talked about this question, and perhaps even the answer is somewhere in our correspondence