I leave tommorow or I will leave tommorow

[Dimmitry]

Hello everybody. I am from Russia and I have a question for you. Studing English, I use video lessons of one Russian teacher that says that these kind of constructions, I mentioned in the topic, are equal. Is that true or, maybe, it depends on context ?
Thank you in advance.

[Beeesneees]

In most cases there is no significant difference between the two.
'will' emphasises the intention to leave.

Note the spelling of 'tomorrow'.
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Cheers m' dears!

[Dimmitry]

Thank you for this clarification.

[Beeesneees]

That's my pleasure.
It's a little belated now, but welcome to the forums.
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Cheers m' dears!