Which is correct:
We would like to thank all of those that believed in this project.
or:
We would like to thank all those that believed in this project.
Learn English – Is the use of ‘of’ necessary in ‘all of those who’
all-ofprepositionsword-usage
all-ofprepositionsword-usage
Which is correct:
We would like to thank all of those that believed in this project.
or:
We would like to thank all those that believed in this project.
Best Answer
In the case of "all of those" vs. "all those", it's a matter of personal preference. Personally, I would use "all those"; I think it flows better.
This Google Ngram also shows preference for "all those":
I included both "that" and "who", but as others have said, "who" should be used (i.e. it's not strictly incorrect to use "that") when referring to people or groups thereof.