Please tell me if these are correct English.
I'm not sure about articles and prepositions.
- My brain is already on summer mode.
- My brain is now on English mode.
- My brain has been set to XXX mode.
Thank you for your opinion, albertino , but I'm still waiting for native speakers' reply.
For the first two, I would use "in"; the third one is fine. No articles are needed for these expressions.
Thank you Anglika.
So, is "in" wrong for the first two?
I know Anglika is saying "in" is good.
I'd like to know whether "on" is completely wrong or acceptable from the native speakers' point of view.