Words similar to ought

Example sentences for: ought

How can you use “ought” in a sentence? Here are some example sentences to help you improve your vocabulary:

(Incidentally, presumably the second or third sight in the triplet cite/ sight/sight ought to be site .)
I think he ought to know, not because I have fallen for him as well, but simply to do the right thing.
Between 1948 and 1961, fieldworkers based at the University of Leeds conducted the Survey of English Dialects, which studied 313 localities in England (which, as everyone ought to know, does not include Wales or Scotland).
Indeed, first editions in pristine condition ought to be less valuable than most books, because it's almost impossible to use them for their intended purpose--i.e.
In Grambs's book, the single-word synonyms work fairly well, but, as elsewhere, the system breaks down when trying to anticipate where a user ought to look to find a word: not everyone is likely to choose the same “reverse” concept.