meaning of 'might have' phrase

[Arya]

hi

can u tell me in which case we use 'might have' phrase.

thanks

[Kitosdad]

Arya,

You might have, used a capital letter at the start of your sentence.
You might have in fact used three capital letters in your three lines.
You might have added a comma, and a full stop.
You might have said " You " instead of "u "
You might have used a question mark.

You might be getting the message by now ... I really hope so.

Kitosdad.
_________________
Keep it simple ... Keep it interesting.

[Arya]

thanks so much

[Kojokonduro]

Yeah you are really right with what you said, i am very happy to know that too.