The question is, what have i written or read before and what have i never thought about in english. Sometimes it just flows out of my mind like from a fresh spring, sometimes I have to look up a lot of new words that I don't understand or need to use for first time in a diary. This usually affect grammar for sentences with those words that I do not use often. I do not know consciously about english grammar and cannot tell you really what "subject - predicat - object" may mean and what not. Only in some cases where I rememeber. I do write the most just from how it comes. If i have not expressed soemthing before at all, it may seem wet and dirty, just like a new born child.