Usage patterns
何度も〈動詞〉to do something over and over again
I practiced over and over and finally got good at it.
何度も何度もagain and again (emphatic repetition)
He asked the same question again and again.
何度も〈事〉を確認するto check something several times
Since it was an important document, I checked the contents several times.
何度も同じ〈物・事〉をするto do the same thing repeatedly
He makes the same mistake over and over.