-자 is an informal sentence ending used to suggest, propose, or encourage an action, often translated as ‘let’s’.
포도가 너무 잘 익어서 가방에 넣을 수 없었기에, 맹인은 그 자리에서 라사로와 함께 포도를 나누어 먹기로 결심했다.2 The grapes were so ripe that they couldn’t be put in the bag, so the blind man decided to share them on the spot with Lazaro.
지 is part of the negation pattern -지 못하다, an expression used to indicate inability to perform the action or reach the state described in the preceding statement.
-을 is a modifier that turns the preceding statement into a phrase describing the following noun, conveying assumption, intention, or possibility and including future, potential, or unrealized actions and states.
-으러 is a connective ending used to express the purpose of an action and is exclusively used with movement verbs like 가다 (to go) or 오다 (to come) to indicate going or coming in order to do something.
내가 하나 먹으면, 너도 하나만 먹는 거야.2 If I eat one, you also eat one.
-어야 is a connective ending used to indicate that the action in the preceding clause is an essential condition or requirement for the action in the following clause.
이를 눈치챈 라사로도 맹인을 따라 두 개씩, 세 개씩 먹기 시작했다.2 Noticing this, Lazaro also began eating two at a time, then three at a time, following the blind man’s example.