The video tutorial explains the concept of infinitives, which are the 'to' form of verbs, and their roles in sentences. Infinitives can function as adjectives, adverbs, or nouns, and the video provides examples for each usage. The tutorial emphasizes the versatility of infinitive phrases and their importance in English grammar.

What is the basic form of an infinitive?

• The -ing form of a verb

• The plural form of a noun

• The past tense of a verb

• The 'to' form of a verb

Which part of speech can an infinitive phrase NOT function as?

• Adverb

• Conjunction

• Adjective

• Noun

In the sentence 'Sandor is a man to watch', what role does 'to watch' play?

• Verb

• Noun

• Adjective

• Adverb

Which question does an infinitive phrase answer when it functions as an adjective?

• How?

• When?

• What kind?

• Why?

In the sentence 'The 542 is the train to catch', what is the function of 'to catch'?

• Adverb

• Noun

• Adjective

• Verb

What question does an infinitive phrase answer when it functions as an adverb?

• Who?

• Which one?

• How?

• What kind?

In the sentence 'Sandor worked to earn money', what role does 'to earn money' play?

• Noun

• Verb

• Adverb

• Adjective

Which of the following is an example of an infinitive phrase functioning as an adverb?

• To be honest

• To earn money

• To run fast

• To catch the train

What is the function of 'to earn money for the repairs on his house' in the sentence 'Sandor worked to earn money for the repairs on his house'?

• Verb

• Noun

• Adverb

• Adjective

In the sentence 'He wanted to play his enemies', what role does 'to play his enemies' play?

• Adverb

• Adjective

• Verb

• Noun