Certainly used in a sentence

Certainly in a sentence as an adverb

The man must certainly own a pair of regular prescription glasses and was being extremely naive.

Depression certainly doesn't make it any easier -- I know that from experience, too.

First, computer programmers are certainly among the most respected trades.

Think of it this way: had your company been successful, it almost certainly would have left you in a state where you'd be working for someone else for a couple years during your earnout.

Second, the baseline for becoming a programmer isn't very high -- certainly nothing on the order of becoming a doctor or lawyer.

I learned to make decisions in the absence of firm information, knowing that I may be wrong but that I can't make any forward progress without trying something out that is almost certainly wrong.

If by "if-by-whiskey" you mean the fallacious, ****-flopping, cowardly practice of pandering, then certainly I am against it. But, if when you say "if-by-whiskey" you mean the circumspect, open-minded, responsive practice of consideration, then I am certainly for it. This is my stand.