I have been solving the grammar tasks for JLPT N3. I have made a mistake in the following question.
I know the right answer is できません, but I still don't understand why. Can you explain to me please why other answers are wrong? It just seems to me that there is not enough context to solve this task.
I can guess that the first part translates like: If after I get money, it doesn't come off, the delivery of the item is... But I can't guess the right answer only from this. Can you help me please to understand it?