Question

are the underlined words to run, to sing, to school, to college, to listen an infinitive or prepositional phrase​

Answer 1

to run: infinitive

to sing: infinitive

to school: preposition

to college: preposition

to listen: infinitive

Step-by-step explanation:

If to is followed immediately by a simple verb, it is part of an infinitive. If to is followed by a noun construction, it is a preposition.