Hi, you say "I am going home". This is present progressive, which means that you are going home right now at exactly this moment. If you say " I am going to go home" it is future: going-to future. It means that you are having the definite plan to go home soon. If you say "I will go home" you know that you want to go home in future, but your plans may also change. So you have three different times mentioned, and two of them are future tense and one is present progressive.

Hi Sna27. You are right; we can use 1-"will" ,2-"be going to" or 3-the present progressive to talk about the future. We can even use 4-the present simple in some cases: 1-"Will": a- it usually means that you have taken the decision at the time of speaking: I will go home. b- in a sentence like " I will come again", it may imply a promise. 2. "Be going to ": a- it usually means that you took the decision before the time of speaking (a plan): I am going to visit my grandfather. b- You can use it for predictions based on present facts : It is going to rain. ( I can see some clouds in the sky). 3. Present Progressive/continuous : used to talk about definite arrangements in the future: "I'm flying to Paris tonight". 4. The Present Simple : usually used with events that are part of timetables (train /bus/class timetable): The train leaves at 9.

Hi! Use of I am going to: when something is planned or arranged. -I am going to Spain in a few days. ( I already have my tickets) Use of will: when the future is not planned or you make the decision at the moment of speaking. -I'll probably stay at home today