tow sentences with the same meaning

[Amin]

hi friends
i have a question, today when i was studying a text i found to sentences that are i think are the same but i couldnt recognize the reasons. could you help me?
they are:
1- that is bether for you, did you but know
2- this will be bether for you, if ye knew it

[Mister Micawber]

Yes, the carry the same intent. The verb forms are different, of course.
_________________
Native English teacher at Mister Micawber's

[Amin]

which kind of( if) is used in the 2 sentence

[Mister Micawber]

What are my choices, Amin?
_________________
Native English teacher at Mister Micawber's