1.   Ask John to mail those letters tomorrow.

2.   Could you do me a favour and mail these letters for me?

3.   I keep forgetting to mail this letter.

4.   I mailed the letter on Monday and had a response already on Friday.

5.   I was sure I mailed the letter yesterday, but I must have dreamed it.

6.   Lest her neighbours gain the impression that no-one ever wrote to her, she wrote and mailed letters to herself.

7.   The mail just arrived.

8.   That reminds me, did you mail that letter I gave you yesterday?

9.   Although she did not intend to mail the letter, she finally did.

10.   Although the letter was never mailed, the former president did hire a law firm, which threatened to sue.