Help with verb agreement and diagramming

[KisaVal]

I wrote,"I am one of those who feed the cat." Grammarly corrected it to "feeds". Which is right? How would you diagram the sentence? Thanks.

 

[jutfrank]

The verb should agree with the number of those (plural), so feed is right.

those who feed the cat = the people who feed the cat

 

[PaulMatthews]

I am one of those who feed the cat.

The relative clause modifies "those": there is set of people who feed the cat and I am a member of this set.

However, singular override is found, which can probably be attributed to the presence of singular "one".

You asked how it would be diagrammed. Are you asking for a tree diagram?