do you know the way to the national university?
--> can you
could you tell me how to get to the national cinema?
-->could you show me
lt is not necessary to bring that umbrella with you
--> you do not
learning how to sew is very usefu; for girls nowadays
--> lt is
my uncle sent me a letter last week
--> l recevied
remember to wash and iron youe clothes
--> do not
l am one metter 70 centimeters in height
--> l am