The -s is only added to regular verbs in the present tense when the subject of the verb is a third person singular subject. This -s is different from the plural -s. Do not confuse the two.
Explanation:
Example: If he or she needs/need me, I will be in the other room.
Answer: In this sentence, he and she are the subjects; however, they are connected by or so we use the singular verb needs.
Answers & Comments
Answer:
The -s is only added to regular verbs in the present tense when the subject of the verb is a third person singular subject. This -s is different from the plural -s. Do not confuse the two.
Explanation:
Example: If he or she needs/need me, I will be in the other room.
Answer: In this sentence, he and she are the subjects; however, they are connected by or so we use the singular verb needs.