What do you call a phrase where a verb is preceeded by the word to

It sounds like an infinitive. to go, to read, etc.

Please learn how to spell grammar. That's one of the first things you should do to demonstrate that you are educated.

=)

An verb infinitive (to + verb)can be the object of another verb, as in

"I hate to study"

A verb infinitive can also take its own object, as in
"To avoid a bad grade, do your homework."
In that case, <to avoid (the infinitive)+ a bad grade (the object)> is called an infinitive phrase

The phrase you are referring to is called an "infinitive phrase." It consists of the word "to" followed by a verb. Infinitive phrases can function as noun, adjective, or adverb phrases in a sentence.

To find examples of infinitive phrases, you can try searching for sentences that contain the word "to" followed by a verb. Online resources like grammatical guides, grammar websites, or grammar books can provide further explanations and examples of infinitive phrases.