"Unbearably" is an adverb that describes something that is so intense or extreme that it cannot be tolerated or endured. It often refers to feelings, situations, or conditions that cause significant discomfort or pain. For example, one might say they feel unbearably hot or are in unbearably sad circumstances.
Bear is the root word of unbearably.
Unbearably has four syllables. The syllables are un-bear-a-bly.
The word unbearably consists of five syllables - un-bear-a-bly.
Sure, I can use "so" at the beginning of a sentence.
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bear
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.
"Can you use cruel in a sentence?" is a sentence, so yes, unless you mean something else?
'Bisters' is not a word, so I can't use it in a proper sentence.
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Unbearably hot.