Key
Raise is a regular verb (raise-raised-raised)
It's transitive (takes an object), raise something.
Rise is an irregular verb (rise-rose-risen)
It's intransitive (takes no object), something rises.
He raised his hand to answer the question.
She raises her voice when she gets angry.
rise (rose, risen)
The sun rises in the east.
Prices have risen lately.
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