You are now one of a group using... vs You are now one of a group that use...

Hi,

You are now one of a growing group of successful learners using Deep English.
Why not “You are now one of a growing group of succesful learners that use Deep English”?

Thanks in advance. Bye

“that/who use” would work too, though I prefer “who”.

Hi Dozy,

I don’t understand why the original sentence is not “You are now one of a growing group of seccessful learners that/who ARE using Deep English”.

I guess that if I omit “that/who”, I can also omit “are”, and so simply say “you are now one of growing group using Deep English”. Is that so?

These are all possible and mean near enough the same thing:

“You are now one of a growing group of successful learners using Deep English.”
“You are now one of a growing group of successful learners who/that use Deep English.”
“You are now one of a growing group of successful learners who/that are using Deep English.”

In the last case you cannot omit “who/that” without also omitting “are”. In other words, this is not possible:

“You are now one of a growing group of successful learners are using Deep English.”

Thank you, Dozy. It’s definitely clear now.