No this is grammatically incorrect. Some correct examples would be:
the correct ways would be 'did you inform' or 'have you informed'.
"On a train" is correct grammar.
Since Alexis already has a "s" on the end, it would be Alexis' mom.
Grammar.
The grammar is correct as it is.
Yes, that sentence is correct grammar.
No, and you already did by typing that lowercase 'I'.
If your spelling and grammar are already correct, then changes will make them incorrect and should not be accepted.
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
the correct ways would be 'did you inform' or 'have you informed'.
Yes, it is correct grammar to say "Let Brittany or you know" if you are addressing both Brittany and another person in terms of who should be informed. It is a common way to phrase a message where either Brittany or the other person should be informed.
No, it is correct grammar, not a correct grammar.
The correct grammar is: "Are those correct?"
"On a train" is correct grammar.
Since Alexis already has a "s" on the end, it would be Alexis' mom.
The correct grammar for this sentence is: "When did you send it?"
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'.