New words：

deny [di'nai] v.否认；拒绝；否定；不承认

deny to do‌ 强调动作的未来性或未完成性，通常用于表示拒绝去做某事
deny doing‌ 强调动作的完成性或已发生性，通常用于表示否认做过某事

Sample Sentences：

He denied to go to the party.
He denied going to the party.
There's no denying that he was a great man.
He denied knowing anything about their plans.
No one can deny that smoking is bad for your health.

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