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:

To this day, for example, we cannot be sure whether it was primitive fear or mischievous humour that inspired a famous Indian woman to introduce herself to white people by her nickname ( Pocahontas , which provocatively suggests `Wanton Valley' or `Wild Place') rather than by her demure real name, Matowaka `Snowflake.
I cannot answer for his command of Vietnamese; his grasp of English was, to put it mildly, feeble and slippery.
As federal employees, postal workers are not allowed to strike and, if a negotiated settlement cannot be reached, contractual disputes are resolved by binding arbitration.
In summary, the assessment of a "safe" or "no-effect" concentration cannot be made from the results of statistical analysis alone, unless (1) the assumptions of a strict threshold model are accepted, and (2) it is assumed that the amount of adverse effect present at the threshold is statistically detectable by hypothesis testing.
But even these cases often cannot be resolved while the worker is still in the United States.