Is "Yes I do want it!" gramatically correct?

[Aikuzo]

Are those gramatically correct?
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I quit studying English years ago and have just come back to study the basics.

[Milanya]

A comma is needed after "yes."
Yes, I do want it.
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con·text - The part of a text or statement that surrounds a particular word or passage and determines its meaning.

[Copra1974]

it is correct and you can you use it to emphasise the action(( the verb ))
you do not need to use yes before this sentence

[Kitosdad]

"it is correct and you can you use it to emphasise the action(( the verb ))
you do not need to use yes before this sentence"

Says the person who ignores captal letters, commas and fullstops! :) :)

Kitos.

Aikuzo, just do as Milanya says. You won't ever be wrong.
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Keep it simple ... Keep it interesting.

[Yuri Yurinov]

Hi, Kitos. Good afternoon (evening?). It is near the morning in my place.

I DO appreciate your reply about emphasis. But what about a comma in the address 'Hi, Kitos'? Must I write 'Hi Kitos'? In Russian the comma is obligatory in this case.

Yuri
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Everything is Anything.

Please NO Youtube on "My first steps in English" thread...

[Aikuzo]

Yes, thanks guys! xD
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I quit studying English years ago and have just come back to study the basics.

[Kitosdad]

Good morning Yuri. As a personal greeting I wouldn't use it, but in the sentence shown in the question I would use it.

Greetings from Essen.

Bill.
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Keep it simple ... Keep it interesting.