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Your question is grammatically and idiomatically incorrect in many ways. First of all "grammar", the way you are using it, cannot take the indefinate article "a". It is idiomatic to say "Is [quote sentence here] correct grammar?"
So it would appear that the phrase/ sentence you are asking about is "It does she clears your doubt." There are too many verbs and pronouns in this. Is the subject "it" or "she"? Is the verb "does" or "clears"? Either way, these are not verbs that can be used coherently with the object "doubt"--that is not a grammar problem but a usage problem. As a result it is impossible to get any meaning from this heap of words.
What else can I help you with?
How do you correct a complex sentences?
By learning correct grammar.
Do you have a sentence for doubt?
I highly doubt that we will have any snow days for the rest of the school year.
What is difference between doubt and confusion?
I doubt what I do not believe or trust while I am confused over what I do not understand.
Difference between Context-free grammar and regular expression?
almost same
What is the adverb for excel?
'excellently' NB In English Grammar , most adverbs end in '---ly'.
Is will be had correct grammar?
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
See you after an hour and a few minutes is a correct grammar?
No, it is correct grammar, not a correct grammar.
Is those are they correct grammar?
The correct grammar is: "Are those correct?"
Is 'on a train' correct grammar?
"On a train" is correct grammar.
When did you sent is this the correct grammar?
The correct grammar for this sentence is: "When did you send it?"
Is this a correct grammar i hate you the way you hate me?
No, the correct grammar would be "I hate you the way you hate me."
Does the sentence you do do that have correct grammar?
no_____If the sentence is You do do that (meaning You are in the habit of doing that) the grammar is perfectly correct and the sentence 'does have correct grammar'.
Is july has just been started a correct grammar?
"July has just been started" is not correct grammar, instead the correct grammar is "July has just started."
Is my mother an I correct grammar?
The correct way to phrase this question is: "Is my mother and I correct grammar?"
Is the phrase did he kissed you yet correct grammar?
its has he kissed you yet that's the correct grammar-Erendiraa
What is the correct spelling for grammar?
Grammar.
What is the correct grammar for thank you for the information shared with me and Sam?
The grammar is correct as it is.
