My biggest problem is too busy.这个句子有问题么 能用busyness么

My biggest problem is too busy.这个句子有问题么 能用busyness么

首先,个人觉得省略句式不够正式,可能写成My biggest problem is that I'm too busy.更好.如果要写成busyness的形式建议不做表语,而是直接做主语,更符合外国人的语言习惯,即 To me,busyness is the biggest problem.