Write sentences about your life at home. Write two with mustard , two with mustnt and two with neednt .

I must help my parents. 
На выбор 

I must clean my flat (my room/my house) every week.
I must go to bed before midnight.
I must water the plants. I must walk my dog.

I mustnt come back home after 9/10/11 p.m. 
I mustnt listen to music too loudly. 
I mustnt use my mothers computer at home. 

I neednt clean my flat every day. 
I neednt cook dinner. 
I neednt clean the windows.
I neednt wash my clothes by hand. (вручную)