Question

1. I have as many books a Tom has.
2. I have as many books as Tom does.
3. I have as many books as Tom.
4. I have as many books as Tom has many books.

(Which ones are correct?)

5. Tom has as much money as Bill.
6. Tom has half as much money as Bill.
7. Tom has half times as much money as Bill.
8. Tom has two-thirds as much money as Bill.
9. Tom has twice as much money as Bill.
10. Tom has twice more money than Bill.
(Which ones are grammatical?)

Answer 1

2 and 3 are correct.

5, 6, 8, and 9 are grammatically correct.