I am not on purpose这句话对不对?

I am proud of you second这句话对不对 I am not possible to arrive there on time这句话错在哪里 I feel not very well这句话对不对? 为什么这句话要+am上去- I am not leaving I was moved by the hard work.请问这句话对不对,为什么用was 而不是am 什么情况下使用这句话“i am not good.”? I am not the most suitable这句话是什么意思 I am not a cradle-snatcher这句话什么意思, i stayed awake on purpose 中on purpose做什么 No,I am not.I am lucy.这句话有没有错误的地方? i can not do anything but say sorry这句话语法对不对 i can see people who are windsurfing on the sea这句话对不对