Question

I prefer to cook dinner for my parents. ( replace the infinitives using gerunds)

Answer 1

Both gerunds and infinitives can replace a noun as the object of a verb. Whether you use a gerund or an infinitive depends on the main verb in the sentence.

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Following a verb (gerund or infinitive)

I expect to have the report done by Friday. [INFINITIVE]

I anticipate having the report done by Friday. [GERUND]