English Language Learners Stack Exchange is a question and answer site for speakers of other languages learning English. It only takes a minute to sign up.
Sign up to join this community
I want to write about a website that we can talk at the same time with others by using voice or video chat because it is optional to use one of them, and I am not sure what can I use by or with in the sentence. for example.
"It is the best website to find a lot of groups for practicing English speaking skills by / with using both voice or video chat."
"By" works here, but "with" does not.
You might also be looking for the conjunction "and/or", which means either one, or the other, or both:
We can practice by using voice and/or video chat.
