What type verb typically includes the word "to"

The type of verb that typically includes the word “to” is an infinitive verb.  

Explanation

An infinitive form of a verb is always used with a “to” before it.

The verb may perform the function of a noun, adjective or adverb.

The verb is present in its basic form ie. the verb will not end with –ed, -ing or –s.

In bare infinitives, the word “to” is not used.

Infinitives can be found in a different place in the same sentence and may serve different functions.

For example- To play.

whether dad arrives in time for the game depends on his conference. subject