III. Put the verbs into the Present Perfect.

2. I... (not see ) him since July.
​

I haven’t seen him since July.

- Present Perfect Tense -

I (have not seen) him since July

Объяснение:

Formula:

(+) S + Have/has + V3 + O

(-) S + Have/has + not + V3 + O

(?) Has/have + S + V3 + O ?