I carelessly forgot to put a stamp on the letter.
I don't remember to post the letter.
I don't remember mailing the letter.
After I write the letter, I'll mail it in a mailbox.
Don't forget to post the letter.
Don't forget to mail this letter.
The letter goes like this.
I will write that letter one more time.
I have to remember to mail the letter.
I tore the letter to pieces.
I wrote a letter.
I forgot to mail the letter, but what does it matter?
I remember mailing the letter.