Yes, the relative pronoun "who" begins adjective clauses, those that modify nouns. The same applies to the words whom, whoever, whose, that, and which.
In the sentence 'Who were all comedians?' the word 'who' is an interrogative pronoun; the word 'were' is the verb; the word 'all' is an adjective describing the noun 'comedians'.
An adjective clause begins with a relative pronoun, such as who, whom, whose, which, that, when, or where.
an adjective clause.
The complete adjective clause is "that bought me a soda".
Adverb Clause
"Who were all comedians" is a adjective clause (a relative clause), for example:Jack Benny, Milton Berle, Burns and Allen, Stu Erwin, and The Goldbergs, who were all comedians, were TV stars of the early 1950s.The relative clause 'who were all comedians' is a clause introduced by the relative pronoun 'who' and relates back to and further describes the subject nouns (names).See the links below for simple descriptions of adjective and adverb clauses.
adjective
adjective
In the sentence 'Who were all comedians?' the word 'who' is an interrogative pronoun; the word 'were' is the verb; the word 'all' is an adjective describing the noun 'comedians'.
adjective
An adjective clause is the group of words that contain the subject and the verb acting as an adjective. An adverb clause answers questions like how, when and where.
"You" is not an adjective clause, or any other kind of clause, because it is a single word. "You" is a pronoun.
a dependent clause that modifies a noun
adjective
An adjective clause begins with a relative pronoun, such as who, whom, whose, which, that, when, or where.
A relative clause is also called an adjective clause because it describes the antecedent noun or pronoun.A relative pronoun is used to introduce an adjective clause:The cookies that mom made are for the bake sale. (mom is the subject of the adjective clause)A relative pronoun is used as the subject of the adjective clause: My car which is new was hit in the parking lot. (which is the subject of the adjective clause)
adjective clause--------novanet