是a little of a cold还是a little a cold

是a little a cold,小感冒（cold是名词）
a little cold有点冷（cold是形容词）
人花时间或金钱用spend,商品/物花人的时间或金钱用cost,人买了什么东西而付款用pay for（后面接所买的东西）,一件事（注意不是一件物体）花人的时间或金钱用take.
换言之,spend主语是人.
cost主语是物,间接宾语是人,直接宾语是时间或钱.
pay for主语是人,宾语是物.
take的主语是事（常用it作形式主语）,宾语是人.
如：
I spent 3 months in writing the book.
It cost me 3 months to write the book.=To write the book cost me 3 months.
=It took me 3 months to write the book.=To write the book took me 3 months.
The book cost me 50 yuan.
I paid 50 yuan for the book.