Neither John or Mary cleaned their room, like they were supposed to do.
This is supposed to be a free concert.
You should not use "suppose to", since it's not correct. You can, however, use "supposed to", and you can use that in the same way you might use "should".
For example, "You were supposed to be here an hour ago" means "you should have been here an hour ago." In another example, "Their house is supposed to be on the next block" is about the same as saying "their house should be on the next block."
I suppose i can tidy my bedroom
I was supposed to go home. I did, however, wait until dinner had finished. It was a good decision, because after dinner, we enjoyed an excellent dessert!
Meet me at the rendezvous point, immediately. We were supposed to rendezvous at nine.
I am supposed to go to my room.
The last lines of the inscription on the grave are a bitter reference to carey's supposed cowardice.
A slogan is supposed to be catchy.
I can give you several sentences.I supposed that your homework was due today.You were supposed to finish already.We had supposed that the committee was finished already.
Only if it is a name or the first word in a sentence.
No, except if the word is used at the beginning of a sentence.
use it by saying- how can you use the word ebullient in a sentence?
Puritans are not supposed to show frippery.
How can you use the word infectious in a sentence
Can you use the word concluding in a sentence? Done.