I'm going to my appointment this afternoon.

or

I'm mowing the lawn tonight after work.

Hope it helps.

Will = When something is probably going to happen, but you're not sure about the exact details or timing.

Examples: "I will get a job eventually" "I will visit the Grand Canyon before I die" "Rennes will win a trophy someday"

Am going to = When something is decided and definitely happening.

Examples: "I am going to go to the match on Sunday" "Celtic are going to play PSG next week" "Zvon is going to get mad at everyone who criticises Bensebaini"

Those are just guidelines though to help you sound more like a native. In general, you can use "will" or "going to" in most of the same situations. Nobody will really notice or care which one you use, they're both accurate.

For "About to", that one is more specific. That means you're literally going to do the thing very soon.

So "I'm about to leave" = The person is leaving in a couple of minutes.

In French, you can just say things like "Je pars" or "J'arrive" just before you leave or arrive, and in English we would use "I'm about to".

Is it just the difference beetween the way  natives speak English and the way people learn English .

Example  I will leave  ( je vais partir) and I'm about to leave or I'm going to leave

Do you make any differences between those examples ?

We're waiting for a last guy and I will start the mercato.

We can speak in the MPG Premier League topic, it will be more appropriated.

PS : sorry for my pour english

Yeah I'm still interested. I've clicked on the link and joined up. Thanks!

@Breizhcanari : "I hope that Celtic is going to win against PSG" is an okay sentence, but it just doesn't sound as natural as "I hope that Celtic will win against PSG".

It's hard to explain, but it's just better and more natural to use "will" in cases like this, so if you want to be really accurate and sound like a native, use "will", but otherwise your sentence is still fine.

I'm always happy to lend a hand.

And can we do whatever we want with it?

And if this sentence is not correct , can you explain me why ?

Thanks for your help

You've made my day!

I hope that Celtic will destroy PSG

Well, there's nothing grammatically wrong with saying "that" in all those cases. All of your examples are fine. It's good English and, personally, I tend to use "that" in most of those situations, but I think, at least when people talk, it's becoming more and more common for people to skip the "that". It's still good grammar to say "I hope..." or "I believe..." without the "that".

It's kind of like in French how people say, for example, "Je vais pas..." and leave out the "ne" all the time. It's just a faster way of talking, and I think you've probably seen it more because it seems like Americans do that sort of stuff more often.

So yeah: "I hope Celtic will win against PSG" or "I hope that Celtic will win against PSG" - Both are fine.

Michael, can we apply that for everything or is it specific to "hope"?

Because I use to say "that" for example after "I saw that you were there..." or "I believe that..." "I think that..." " he told me that..."but when paying attention to what people say, they don't always say "that" (even very rarely)

Is it a US/UK thing or people just don't mind the correct grammar?

I am still a bit confused about that stuff

Bonus tip: British people just call them "Celtic", rather than "Celtic Glasgow".

It would be amazing if Celtic won! I'm looking forward to that game.