i want to buy a car的to是介词还是不定式?

i want to buy a car的to是介词还是不定式? I want( )to buy/buy a car. 填空 I want to buy a car ----safety is good.填which还是whose I want to buy a car of _____own. I have enough money and want to buy a car 比如play with water是“玩水”的意思,为什么不加the?而I want to buy a car with I want her to buy a car.这句话的各个句子成分是什么? I want to buy him a new toy car 的同义句 welcome to的to是介词还是不定式? be prone to 的to 是作介词还是不定式? I want to buy a sports car just foever belong to 怎么区分to是不定式还是介词