Question

4. I had to study hard to succeed in my exam. (Pick out the infinitive).​

Answer 1

Explanation:

The infinitive is the base form of the verb.' They have different forms, like the to-infinitive (to + verb) and the base infinitive (just the verb).

When we simply say the infinitive, we're generally talking about the to + infinitive.

The infinitive in the given sentence is 'TO DO', as 'do' is the verb in the sentence.

Answer 2

Answer:

to is the answer in this question