In sentences that contain the phrase one of.....
1. In simple form one of or one of the, a singular verb is used.
e.g - One of the books is missing from my cupboard.
2. In sentences that contain phrases one of those who or one of the things that, a plural verb is used.
e.g - He is one of our employees who are always alert.
3. When only precedes one of /one of those, a singular verb is used. (Do not mix this rule with the 2nd rule stated above)
e.g - Ram is the only one of our employees who is always alert.
1. In simple form one of or one of the, a singular verb is used.
e.g - One of the books is missing from my cupboard.
2. In sentences that contain phrases one of those who or one of the things that, a plural verb is used.
e.g - He is one of our employees who are always alert.
3. When only precedes one of /one of those, a singular verb is used. (Do not mix this rule with the 2nd rule stated above)
e.g - Ram is the only one of our employees who is always alert.