What's defference?
can u help me to understand, what is difference between "거면" and "면"
both means "if"

but in which case i need to use first one?
for ex: 쉽게 끝날거면

honestly i can't say by another way too (끝날다면,끝날면 both are wrong)

but anyway i wanna understand difference, cuz i don't undestand that's mean "거" in this case

thanks in advance

Question

What's defference?
can u help me to understand, what is difference between "거면" and "면"
both means "if"

but in which case i need to use first one?
for ex: 쉽게 끝날거면

honestly i can't say by another way too (끝날다면,끝날면 both are wrong)

but anyway i wanna understand difference, cuz i don't undestand that's mean "거" in this case

thanks in advance

Answer

-ㄹ 거면 is a colloquial contraction of -(으)ㄹ 것이면 which means "if it is the case that ..."
Conditional -(으)면 means "if; if and when; when supposing"

쉽게 끝날거면 is contraction of 쉽게 끝날 것이면
if it is the case that it ends easily
= as long as it ends easily

쉽게 끝나면
it it ends easily