Dear younger brother.

I have had to go away for two days because my boyfriend's grandfather is in the hospital, he has suffered a heart attack, but don´t worry, he's already stable.
I went out in a hurry so I couldn´t hang up the clothes that are in the washing machine, please can you hang it up?
For dinner I was going to prepare fish and chips. You must get out the fish from the freezer at least two hours beforehand. The potatoes are in the larder. But if you don´t want to eat fish you can order some takeaway.
Don´t forget to feed the fish, I wouldn´t like find them floating when I return.
I´ll probably phone you tomorrow.
Bye.

[Fish is a difficult word to pluralise in English. Most of the time the plural is just 'fish'. 'Fishes' is an older way of saying it so you might see it in things like the Bible story of the loaves and the fishes. Or if you are talking specifically about several species of fish. "Water temperature is very important in the care of several fishes" i.e. in the care of several species of fish]