So if the subject is singular then the verb must be plural Am I right Pls solve this question - English - Subject-Verb Agreement

Question

So
if the subject is singular then the verb must be plural Am I right?
Pls solve this question too Thank you

Mansi Arora · Accepted Answer

Dear Student,

The solution is:
The dog, who is chewing on my jeans, is usually very good
Explanation: The dog is singular and therefore we use 'is' As the
subject of the sentence(dog) is singluar, dont be confused by the
plural use of jeans If the subject is singular than the verb is
singular too

Regard

So if the subject is singular then the verb must be plural.Am I right? Pls solve this question too.Thank you