blighting your day makes world wide day
Why are you blighting it? This is one of many examples for sentence use.
i do not know how to use embalming in a sentence. (there is the sentence)
No, it is not a noun. Blighted is an adjective and the past participle of the verb "to blight." The noun forms would be blighting (the action) or blight (the condition).
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.
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