schatz

Hi! I'm a German who needs a little bit help to create a letter in Portuguese. So sorry for my mistakes - my English is not perfect as well.

I need to write one short letter in Portuguese to one guy who lives a double life with my friend and one woman from Brazil. The letter could sound something like this: "I know about your dirty secrets. If he won't tell her the truth, I will do it".

If anyone can help me, please, I would be very grateful.