2.

1) does not think

2) are

3) say

4) look for

5) think

6) is

7) believe

8) say

9) want

10) like

11) is

12) do not think

4.

1) I always...

2) I usually...

3) I always...

4) I often...

5) I sometimes...

3.

1) believes - believe

2) does - do

3) use - uses

4) Is - Are

5) lives - live