I´d say = I would say well, say it, in place of I want to say or I am saying or I say... Thats the best answer I can think of, you need to get the sense.

I'd say you will figure this out soon = I believe you will understand this out soon I'd say = my opinion is: or I believe that:

I'd saw = I would say that Example: I'd say that it is going to rain or I'd say that it is dinner time now