Words similar to cannot

Example sentences for: cannot

How can you use “cannot” in a sentence? Here are some example sentences to help you improve your vocabulary:

This proposition, arising first in a discussion of the balance-of-payments deficit, is a response to those who think that if something cannot go on forever, steps must be taken to stop it--even to stop it at once.
The factual record before the Commission demonstrates that the vast majority of the claims of H-2A workers cannot be completed while the alien is in the United States.
The potential benefits of a vaccine cannot be overestimated, and its development has to be one top priority for the global scientific community.
I read with interest Lawrence Korb's July 10 statement in "The 21st Century Military" that "Reserve ground combat units at the brigade level and above cannot be maintained at any reasonable level of readiness on a part-time basis because of the complexity of combined arms."
One American dictionary, which I cannot identify, apparently defines the British slang term pooftah as a lady's man (possibly a misfire for an effeminate man, a secondary sense nowadays, after a male homosexual).