Answer :
To install a smoke detector is usually a good idea.
The phrase To install is an infinitive.
Gerund: Installing a smoke detector is usually a good idea.
What are Gerunds, infinitives, and participles?
A word with a "ing" ending that serves as a noun is known as a gerund. The "-ing" suffix changes a verb into a noun by making the entire word a noun.
The word "to" is added to a verb's basic form to create an infinitive, which can then be employed as a verbal noun, adjective, or adverb.
Depending on the root word, a participle is a verb that functions as an adjective and has one of the following endings: "-ing," "-ed," "-en," "-d," "-t," "-n," or "-ne."
A participial phrase, or set of words, is created when a participle is combined with one or more nouns or pronouns.
The phrase To install is an infinitive.
Gerund: Installing a smoke detector is usually a good idea.
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