English to Latin? If you can translate any of these it would be a huge help.

1. They sent soldiers to help us.
2. If he was listening, he would have known that they were here.
3. He knew that the books were being brought by those women.
4. I must help them.
5. If they should send many soldiers, we would be able to defeat the enemy.
6. I know that they brought those things.
7. They know why you came.
8. They would have brought help, if they knew that we wanted it.
9. Let them be seen!
10. We will see them if they come.
11. I know that it happened yesterday.
12. I know what happened yesterday.
13. If only he had come!
14. Let them ask why you can help.
15. We understand by hearing.
16. By hearing them, we understand.