Don't think I am care about it ,never regret no apologies.这句话有没有语法错误

问题描述:

Don't think I am care about it ,never regret no apologies.这句话有没有语法错误
还有就是,Don't think I am care about it 这句话对,还是
Don't think that I am care about it 对

都不对,应当是Don't think I care about it.
care是实义动词,前面不能加am.请问,那。Don't think that I care about it, 对不对呢??
别以为我在乎,这句话,怎样说最好呢。。。英语啊Don't think that I care about it