Which sentence contains an infinitive?

Clayton asked his mother if he could take the bus to the skate park.
Although she was busy, Clayton's mother offered to give him a ride.
After sending an email to her boss, Clayton's mother grabbed her keys.
When Clayton got to his mother's car, he noticed she had a flat tire.

Question

Which sentence contains an infinitive?

Clayton asked his mother if he could take the bus to the skate park.
Although she was busy, Clayton's mother offered to give him a ride.
After sending an email to her boss, Clayton's mother grabbed her keys.
When Clayton got to his mother's car, he noticed she had a flat tire.

jordangantt12 · Answer

Well an infinitive indicates the purpose of a noun.

Mercury · Answer

the infinitive form of a verb is "to" + (the verb) so look for the sentence with that