It is a verb made out of two or more words.

A phrasal verb combines two words to form a meaning that couldn't be understood by looking at the independent words.

I figured out what the answer was.

I need to turn the light off.

I need to turn off the lights.

An adjective is a part of speech .It describes a person, place ,thing, or idea. An adjective modifies a noun or pronoun.

I have a bike.(a is the adjective)

 I ate an apple.(an is the adjective)

I found the book.(the is the adjective.)

"a, an, the " are three very special adjective called "artical."

There are two different kinds of articles, indefefinite articles(不定冠词a,an) and definite articles（定冠词the）.