Posted by rfvv on Sunday, November 22, 2009 at 11:09pm.
1. This is a group of students who help the sick.
2. These are a group of students who help the sick.
3. This is a group of students who helps the sick.
4. These are a group of students who helps the sick.
(Which expressions are correct? Please focus on 'this' and 'help. Is 'group' a collective noun? Thank you.)

English  SraJMcGin, Monday, November 23, 2009 at 2:16am
#3. This is singular as is group, a collective noun. The group it does help, is helping, helps.
These is plural so it would have to be "These groups"
Sra

English  Writeacher, Monday, November 23, 2009 at 9:48am
1. This is a group of students who help the sick. OK
2. These are groups of students who help the sick.
3. This is a group of students who helps the sick. OK
4. These are groups of students who help the sick.
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