1. Infinitives

2. Infinitive phrases
Infinitives combine the word ”to” with a verb’s primary form.
They can function as nouns, adjectives or adverbs in a sentence.
Although infinitives use a verb’s primary form, they are not verbs.

3. Infinitive phrases What is a pleasure? To know him.
Noun: To know him is a pleasure.
What is a pleasure?
To know him.
“To know” is an infinitive.
“To know him” is an infinitive phrase
I would like to know him.
“to know him” tells what I would like.

4. Infinitive phrases Which season is the fall?
Adjective: The season to plant tulip bulbs is the fall.
Which season is the fall?
The season to plant tulip bulbs.
To plant tulips, you need a shovel.
“To plant” is an adverb.
Tells “why” you need a shovel.

5. Infinitive phrases Why should you always proofread carefully?
Adverb: To insure a good grade on your essay, always proofread carefully.
Why should you always proofread carefully?
To insure a good grade on your essay.

6. Building a sentence
To build a sentence, a writer uses phrases and clauses as building blocks.
Build a sentence with a partner that contains at least one infinitive phrase.