I can give you several sentences.
You can always use the idiom "supposed to," as in "You were supposed to do your own homework, not try to get me to do it for you."
What do you suppose was his problem?
I suppose I could do this weekend.
I suppose I shall have to answer this question, eventually.
How do you suppose we are going to do this.I suppose that would be easy to do.
I suppose that if hens could talk, the world would be a better place.
Pioneers believe life is suppose to be harsh and in there afterlife there will be wealth.
I suppose we should start working on the project now.
What do you suppose he will do? I suppose he didn't mean to kill her. Suppose that he wins the election
"Suppose" can be both a verb and a noun. As a verb, it is used to suggest something is true or possible. Example: "I suppose we could go out for dinner."
No; not unless it's used as part of the street's title, e.g. Walnut Street.
The toxic waste began to ooze out from the rusty barrel.
No, suppose is a verb.
It took an extraordinarily long time for the bus to come today, but I suppose it was held up in the snow.
He gave a glib response to the serious problem, showing a lack of sincerity or thoughtfulness in his answer.