Is this device useful to / for you? Which preposition is natural to you? I think that either one is okay to use and they mean the same. What do you think? Thank you so much.
Top answer
To is the only natural preposition here.
— RandomGuy
To is the only natural preposition here.
Free · every Monday
Get the Weekly English Kit 📬
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.