Question

I warned him _____ driving so fast. prepositions

Answer 1

Explanation:

I wanted him to be driving so fast. To be should be used as two prepositions in this sentence because someone is wanting from someone else that he drives so fast. In this sentence, first person has been used. When I am asking from my friend that he should drive fast, I wanted him to be driving fast has been used.

Answer 2

Answer:

I warned him against driving so fast