Use conditional 1 or 2.
1) If I (have) time now, I (help) you.
2) If I (be) you, I (go) to the USA to see my uncle.
3) If I (be) in the USA, I (go) to the Disneyland Park.
4) If we (live) in Mexico, we ( speak) Spanish.
5) If I (have) time yesterday, I (help) you
6) If the Indians (not to give) them corn, the Piligrims (not to survive)
7) If I (have) enough money, I (buy) a new car now.
8) If I (see) her now, I (tell) her the truth.
9) If he (turn up) now, we (discuss) the problem
10) If they (know) about the danger, they (not to go) to the mountains last year.

1) If I (have) time now, I (shall help) you.2) If I (were) you, I (would go) to the USA to see my uncle.3) If I (were) in the USA, I (would go) to the Disneyland Park.4) If we (lived) in Mexico, we (would speak) Spanish.5) If I (had had) time yesterday, I (would have helped) you6) If the Indians (had not given) them corn, the Piligrims (would not have survived).7) If I (had) enough money, I (would buy) a new car now.8) If I (see) her now, I (shall tell) her the truth.9) If he (turns up) now, we (shall discuss) the problem10) If they (had known) about the danger, they (would not have gone) to the mountains last year.