Grammar Scan - Michael Swan David Baker 2008

4 auxiliary verbs
Upper Intermediate

1 All of them are right. See 239.1.

2 A, В and C are correct. We use are to to give instructions (see 91.4), not invitations.

3 It’s wrong. Should be: 1 never believed. See 367.5.

It could also be: I never did believe her (where did is used for emphasis: see 367.5).

4 Add do: She thinks I don't love her, but 1 do love her. See 159.3.

5 В and D. See 159.5. If you thought C was right, see 541.1.

6 A. Right. B. Wrong. C. Wrong.

See 237.1 and 237.2. If you thought A was wrong, see 236.1 and 236.2.

7 Only C is possible. See 237.6.

8 A. Right. B. Wrong.

If you thought В was right, see 237.6.

9 A. Right. B. Right. C. Wrong.

See 238.2.