If-clauses (conditional I+II)

[Dany]

Hello,

would you please correct the following sentences?

Thanks a lot


1. If you give me $50, I will buy (buy) some new shoes.
2. You will fall (fall) down the stairs if you aren’t (be) not careful.
3. If I had (have) more luck, I would win (win) in the lottery.
4. If you help (help) me, I will help (help) you.
5. If it don’t rain (rain-neg), we could go swimming.
6. If I see him I will give (give) him a lift.
7. If you eat (eat) all of this you will be (be) sick.
8. If you found (find) a skeleton in the cellar, wouldn’t talk (talk-neg) about it.
9. If I pass the test I will celebrate (celebrate)
10. If I had (have) a ladder I would repair (repair) the roof.
11. If you left (leave) your purse lying around, it would steal (steal)
12. We had to (must) to walk if we would run (run) out of petrol.
13. If I know (know) that you are hungry, I will give (give) you something to eat.
14. I would answer (answer) the phone if I knew (know) it was you.

[Casiopea]

Here are my corrections:

5. If it doesn’t rain, we could go swimming.
8. If you found (find) a skeleton in the cellar, wouldn’t talk (talk-neg) about it.
11. If you left (leave) your purse lying around, it would steal (steal)
12. We had to (must) to walk if we would run (run) out of petrol.
14. I would answer (answer) the phone if I knew (know) it was you.

[Dany]

Here are my corrections:

5. If it doesn’t rain, we could go swimming.
8. If you found (find) a skeleton in the cellar, wouldn’t talk (talk-neg) about it.
11. If you left (leave) your purse lying around, it would steal (steal)
12. We had to (must) to walk if we would run (run) out of petrol.
14. I would answer (answer) the phone if I knew (know) it was you.

Thanks a lot. I try it again.

5. If it doesn't rain, we could go swimming.
8. If you found a skeleton in the cellar, wouldn't talk about it.
11. If you left your purse lying around, it would be stolen.
12. We would must to walk, if we ran out of petrol.
14. I would have answered the phone if I had known it was you.

To 5: He/she/it + 's' . Here I'm not sure if I have to use 'conditional II', but I think, that 'conditional I' also work here.
To 8: I think that conditional II works here. What is wrong by this sentence?
To 12: I don't know what I thought by this embarrassing mistake
To 14: I think that conditional III works here, but the exercise was only of conditional I+II. What do you think?

[Abdo]

Here are my corrections:

5. If it didn't rain, we could go swimming.
8. If you found a skeleton in the cellar, don't about it.
11. If you left your purse lying around, it would be stolen.
12. We would have to to walk if we ran out of petrol.
13. If I had known that you were hungry, I would have given you you something to eat.

[Dany]

Thanks for your help