I'm going to the market buy some fruit.I'm going to on the morning.句子通顺吗?

I'm going to the market to buy some fruit. I'm going in the morning.请问确定正确？第一个句子给你原句加了个to ,表示做某事的目的，比如I come here to buy a book我来这里（是为了）买书第二个句子，表示在早上，下午，晚上，短语为in the moring/afternoon/evening，除非前面有表示修饰限制的词，才用on ,比如on a cold morningon Monday evening