Read the sentences.My goal when visiting Alaska is to see the northern lights. I learned that the city of Fairbanks and Denali National Park are the two best locations in the state for viewing and photographing the lights.Which phrase is an infinitive phrase?

An infinitive phrase begins with “to” followed by a verb and includes any words that complete its meaning. “To see the northern lights” starts with “to see,” and “the northern lights” completes the phrase, so it is the infinitive phrase. “For viewing and photographing” begins with “for,” not an infinitive marker.

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