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.

## Step 1<br />An infinitive is the base form of a verb, typically preceded by the word "to". It can function as a noun, adjective, or adverb in a sentence.<br />## Step 2<br />In the given sentences, we need to identify the sentence that contains an infinitive.<br />## Step 3<br />Looking at the sentences, the second sentence "Although she was busy, Clayton's mother offered to give him a ride." contains the infinitive "to give".