Answer:
I was waiting for you, but you did not come.
It was already late, so she went back home.
Explanation:
When two or more phrases are combined together to form one complete sentence, it can be termed as compound phrases. Compound phrases are combined using words like and, for, so, but, yet, etc.
A compound sentence containing a nominative case pronoun can be "I was waiting for you, but you did not come".
A compound sentence containing an objective case pronoun can be "It was already late, so she went back home".
