His mental instability increased with age.
The instability of a moving platform is often difficult to balance upon.
The word instability means "imbalance" or "inconstancy." Some words which could be substituted if instability was used in a sentence could be "hesitation" or "insecurity."
His heresy misled many, and was the cause of much instability in the organisation.
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.
How do you use sedition in a sentence
use contingency in a sentence?
use adainty as sentence
Can you use abstemious in a sentence?
use inmates in sentence
use figureatively in a sentence
Use it in a big sentence.