An infinitive = to + a verb
Example sentences:
He likes to jog every morning.
Dad asked her to cook the hamburger.
She has always wanted to play the Flute.
To be or not to be
To determine which sentence contains both a gerund participle and an infinitive, you'll need to identify phrases that include a verb ending in -ing (gerund) and a "to" + base form of a verb (infinitive). For example, in the sentence "I enjoy swimming and want to learn more," "swimming" is the gerund participle, and "to learn" is the infinitive.
She decided to go for a run to clear her mind.
The last one, "Mark wanted to go but not today," contains the infinitive phrase "to go."
The infinitive form of "am" is "to be," the infinitive form of "is" is "to be," and the infinitive form of "was" is "to be."
you are derives from the infinitive of to be. The infinitive that belongs to 'you are' is 'to be'.
The infinitive form of had and has is to have.
"To be" is the infinitive form of are.
The early part of the Declaration of Independence of the United States contains one: "... these truths to be self-evident".
The word jogging is not simply an infinitive. An infinitive is [to + a verb]. To jog would be an infinitive.
An infinitive form of a verb is a non-finite verb form that typically appears with the word "to" before the base verb. For example, "to run," "to swim," or "to eat."
The infinitive "to read" is a bare infinitive.