Infinitive with TO

What do you know about to+Infinitive?

Let's have a look at some theoretical material:

Task 1. Find the words which are used to to-Infinitive

Infinitive + to 1

Task 2. Put "to" before the infinitive where it is necessary

Infinitive + to 2

Task 3. Choose the correct form

Infinitive + to 3

Task 4. Fill in the gaps with the proper word

Infinitive + to 4