Here are some examples:
* The cat and the dog played in the yard. (Both "cat" and "dog" are subjects)
* My mom and I went shopping. (Both "mom" and "I" are subjects)
* The students and the teacher were excited for the field trip. (Both "students" and "teacher" are subjects)
Important Notes:
* Compound subjects are joined by conjunctions like "and," "or," or "nor."
* Each subject in a compound subject should agree in number with the verb.
Let me know if you'd like more examples or have any other questions!