[저는] 땅콩을 못 먹어요. I can't eat peanuts [저는] 땅콩 알레르기가 있어요 I have a peanut allergy 그래서 [저는] 땅콩을 못 먹어요. So, I can't eat peanuts 감사합니다 :) 린제라드

Good job, Mr. Jared. (저는) 땅콩 먹는 거를 못 해요 Eating peanuts, I can't do it. Well, grammatically OK. But that's not a normal expression. Some of people, sometimes, say like that, though. The following sentence is a normal expression usually used. 땅콩(-을) 못 먹어요 I can't eat peanuts.