not to do vs to not do
It's easy for me not to feel how much i am thinking of you just like I can not feel I am breathing because I am breathing at every moment.
It's easy for me to not realize how much i am thinking of you and missing you just as I can not realize the breaths I take, because I breathe with every passing moment.
英语本来就是一个发展式的语言，书写大概在AD1000-AD1200定型，近乎现代的语法大概在AD1700-AD1800开始模式化,纯与不纯在于人们接受不接受，英国号称自己是英文的发祥地，而在二战之后美国却将其发扬光大。以纯正语法而言，to not do是属于split infinitive错误用法。
美国人的to not do something有别于not to do something。后者(not to do)一般具有很多责任，而其责任不包含去做下列的事，前者（to not do）指其主要责任是不去做下列的事。