Question

Identify the complete adjective clause for this sentence The car I drive has 50,000 miles on the odometer

Answer 1

"I drive" is the adjective clause. It modifies "the car."

Answer 2

The answer to your question would be that the complete adjective clause for this sentence is "I drive". In this case, the relative or adjective clause is just the words "I drive", but the word "that/which" is implied. Therefore, this is an elliptical. The technical name for a missing relative pronoun is an elliptical relative pronoun.