Depends on which osculation you mean: kissing or mathematics
The word is a noun in both situations. You can have the moment or place of osculation, or in mathematics the plane or circle of osculation.
"The phone rang just before osculation could occur."
"Before he could find the plane of osculation, he needed to get the normal vector."
KissingThe act of kissing.A kiss.Mathematics. A contact, as between two curves or surfaces, at three or more common points.
i do not know how to use embalming in a sentence. (there is the sentence)
So- you are asking when to use 'when' in a sentence. When you are asking how to use when in a question, you are already using when in a sentence, because a question actually is a sentence. I like to use when in a sentence whenever I like.
use contingency in a sentence?
How do you use sedition in a sentence
use adainty as sentence
Can you use abstemious in a sentence?
use aver in a sentence
use figureatively in a sentence
use inmates in sentence
can i use polymer in a sentence
Use it in a big sentence.