complete the sentences with the correct forms of the verbs.
2) I ... (phone) Mike if he ...(not arrive) before 10 o'clock
3)If you ...(speak) very fast, they ... (not understand) thou you
4) If Marco ... (phone) tonight, ... you ... (tell) him I'm at Sabina's house
5) Your parents ... (not know) if you ... (not tell) them

2) I ... (shall phone) Mike if he ...(does not arrive) before 10 o'clock.

3) If you ...(speak) very fast, they ... (will not understand) you.

4) If Marco ... (phones) tonight, ...will you ... (tell) him I'm at Sabina's house.

5) Your parents ... will (not know) if you ... (do not tell) them.