Actually 'there is' has no critical function and those in creative writing circles will admonish you to avoid using it. There being other ways of saying the same thing.
* Provides a predicate for stating facts eg. There is a tavern in the town.
eg: Don't go there (adverb)
Dont' go over there (adverbial phrase)
you can end a sentence with there.There is a good sentence in here.
I saw your pencil; it's over there.
There is the restaurant you like.
Mazie looked for her keys; she looked here and there and everywhere.
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use it by saying- how can you use the word ebullient in a sentence?
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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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Sure! Here is an example: "I asked my friend for a favour to help me move to my new apartment."
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"I can use 'salutary' in a sentence!"
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