I've never heard of "group verbs" although I taught English grammar for many years.
She may have gotten her tongue twisted and means "verb groups."
What is the teacher trying to teach by telling the students to identify group verbs. How is a verb different from a group verb?
Thanks for your help.
2 answers
You shouldn't question the teacher.
group verb: shouldn't question
modal: shouldn't verb: question
That is one way to get a group verb, a modal plus a verb.
Another is to use an auxiliary verb with a verb.
You haven't seen a better teacher in the 4th grade than this.
verb: seen auxiliary: haven't
group verb: haven't seen
http://www.usingenglish.com/glossary/verb-group.html
group verb: shouldn't question
modal: shouldn't verb: question
That is one way to get a group verb, a modal plus a verb.
Another is to use an auxiliary verb with a verb.
You haven't seen a better teacher in the 4th grade than this.
verb: seen auxiliary: haven't
group verb: haven't seen
http://www.usingenglish.com/glossary/verb-group.html