Question

ㄹ retained in front of -(으)~

Accepted Answer

ㄹ is retained when adding -(으)러, -(으)면, and when adding -(으)ㄹ 때, -(으)ㄹ게요, -(으)ㄹ래요? with (으)ㄹ omitted.

멀다 → 멀면, 멀 때, 멀게요
달다 → 달면, 달 때, 달게요
살다 → 살러, 살면, 살 때, 살게요, 살래요?
만들다 → 만들러, 만들면, 만들 때, 만들게요, 만들래요?
놀다 → 놀러, 놀면, 놀 때, 놀게요, 놀래요?
알다 → 알면, 알 때, 알게요

Grammatically questionable irregular conjugations '마라' and '마요' of the verb 말다 ('desist') are widely used in modern Korean. However the grammatically correct regularly conjugated forms '말아라' and '말아요' became acknowledged in 2015.

때 ㄹ Retained Adding Grammatically Front 으)~ 으)러