Sorry to disturb you.
1. There are others who has also helped, whom the editor would like to assure that they have not been forgotten.(This sentence comes from my grammar book)
2. There are others who has also helped, that the editor would like to assure that they have not been forgotten.
3. There are others who has also helped, the editor would like to assure them that they have not been forgotten.
Question: Which is/are grammatically correct? (I want to change the "has" into the "have" ??)
From the #3 , I guess:
the "they" and the "them" here both refer to the "others" here, Is my guess correct?