Question

I ... Mario for some time since he left Milan a few years ago. Haven't seen Don't see Didn't see

Answer 1

I haven't seen for some time since he left Milan a few years ago.
Это present perfect.
Я не видел Марио в течение некоторого времени с тех пор как он уехал из Милана несколько лет назад.

Answer 2

I haven't Mario for some time since he left Milan a few years ago.

Время: Present Perfect

Answer 3

The correct phrase to use in this context is: "Haven't seen Mario for some time since he left Milan a few years ago."