Uses of "on"

[AMG]

Please, I would like you to help me with the uses of "on".
Thank you all.

[AngelicaDeAlquezar]

Without any context, it's likely that you would get an explanation that might not help you... do you have any specific questions or examples where you need help?

[AMG]

Actually, I am always confused about the use of these prepositions: "at", "on" and "in". I would use'm this way:
In this moment I am at the university in the classroom C-509.
I am at home in my room.
I'm in London at a restaurant.
I feel like I'm in big trouble cuz I failed at being the president!

I don't know if these are right.

Originally Posted by AngelicaDeAlquezar

Without any context, it's likely that you would get an explanation that might not help you... do you have any specific questions or examples where you need help?

[Rusty]

Originally Posted by AMG

Actually, I am always confused about the use of these prepositions: "at", "on" and "in". I would use 'em this way:
In this moment I am at the university in the classroom C-509.
I am at home in my room.
I'm in London at a restaurant.
I feel like I'm in big trouble cuz I failed at being the president!

I don't know if these are right.

The usages are all correct.

Although we certainly pronounce the words "them", "going to" and "because" as you've written them here (and in another thread), you may want to avoid using them in your threads unless they are the topic of discussion.

[AMG]

Oh, ok. Thanks, Rusty