Put the verbs in brackets into the Present Simple or Future Simple.
1) ... (not to cry) till you ... (to be) out of the wood.
2) If the sky ... (to fall), we ... (to catch) larks.
3) ... (not to strike) a man when he ... (to be) down.
4) The cat always ... (to shut) its eyes when it ... (to streal) the cream.