it's gonna rain/ it will rain.
I realize that "going to" means you plan to do something whereas "will" means you talking or predicting the future.

however, I often hear it's gonna rain or its gonna leave a stain. why dont they say it will rain/leave a stain. I think they both make sense,you predict it will rain tomorrow and also you suppose it will leave a stain on the table(maybe a stamp)

so do they both make sense?

Thank you.

Question

it's gonna rain/ it will rain.
I realize that "going to" means you plan to do something whereas "will" means you talking or predicting the future.

however, I often hear it's gonna rain or its gonna leave a stain. why dont they say it will rain/leave a stain. I think they both make sense,you predict it will rain tomorrow and also you suppose it will leave a stain on the table(maybe a stamp)

so do they both make sense?

Thank you.

Answer

I think "It's going to rain" is a prediction and includes some level of uncertainty whereas "it will rain" implies more certainty / more likely

Answer

I've borne it in mind:D thank you Peachey~

Answer

Hi Robin, here's a tip: "will" is a modal verb and therefore the action is hypothetical (but still likely). The important thing to remember is that there's no "proof in the present" and it's still an idea in your head.  "Be going to" means a prediction based on present evidence. You see the present situation, and you can imagine what is likely to happen next.  Maybe that will help you decide which to use.