Write three sentences using the word taxi as four different parts of speech. label each different usage.

I need to ride in a taxi, tomorrow. (Object of preposition)
A taxi is usually yellow. (Subject)
Don't leave in a taxi cab! (Adjective)

So here are three sentences using the word taxi as four different parts of speech:
A. We rode a taxi on our way to the mall. (This is used as a noun)
B. I would taxi home and sleep the whole day, for it was really a very tiring shift. (This is used as a verb)
C. I had a bad day because the Taxi driver was really rude. (This is used as an adjective)
D. Taxi! Please Wait! (This is used as an interjection)
Hope this helps.