I need help with diagramming infinitives?
chocolate_queen09 asked:
I have these sentences that I can’t figure out, and I need to diagram them. I just need to know what the infinitive is and what part of speech (Adj, adv, or noun) it is. If it’s a noun, I need to know whether it’s the subject, direct object, PN, or Object of Preposition.
I have these sentences that I can’t figure out, and I need to diagram them. I just need to know what the infinitive is and what part of speech (Adj, adv, or noun) it is. If it’s a noun, I need to know whether it’s the subject, direct object, PN, or Object of Preposition.
1)The teacher assigned the class to write a friendly letter.
2)We didn’t know what to do.
3)To finish will take us hours of hard work
4)I can hardly wait to wrap my hands around a cup of hot apple cider.
5)To rent scuba diving equipment requires a certificate.
I think I know 3 and 5, but I want to make sure. I really don’t know the other 3. Thanks!


An infinitive is always a verb. It is the form of a verb which appears as the heading in a dictionary entry, and may or may not be prefixed by ‘to’. When the word ‘to’ appears, as it does in all your sentences, I would advise you to include it in the infinitive you give as your answer.
I don’t understand the concept of diagramming sentences, but the infinitives are:
1. to write
2. to do
3. to finish
4. to wrap
5. to rent