Which sentence uses the conditional form of the verb send?
A. I am sending a letter to our grandparents.
B. I could send a letter to our grandparents.
C. I suggest you send a letter to our grandparents.
D. Send a letter to our grandparents.
B. I could send a letter to our grandparents.
The sentence that uses the conditional form of the verb "send" is:
B. I could send a letter to our grandparents.