Question

complete the sentences with the suitable to-infinitive.
The sentence is -
They warned us not _________​

Answer 1

Answer:

to put garbage down....,........

Answer 2

How to recognize infinite verb in sentence

Recognize an infinitive when you find one.

To sneeze, to smash, to cry, to shriek, to jump, to dunk, to read, to eat, to slurp—all of these are infinitives. Important Note: Because an infinitive is not a verb, you cannot add s, es, ed, or ing to the end. Ever! Infinitives can function as nouns, adjectives, or adverbs

$\huge\pink{Answer}$

$They \: warned \: us \: not \: Not \: to \: put \: garbage \: down$