All of the Bible was written by Jews with the possible exception of Luke. Greek was their second language. Even Jesus spoke Aramaic and Greek was His second language. If you examine the Greek NT you will notice that there is much Hebrew word order. If you use a Greek concordance and take a look at each case that uses the same word you find patterns that are like Hebrew phraseology.
The same thing happens for one who is learning English as their second language.
That is your assumption not mine.
Being the "second language" has nothing to do with it. You state they were written in Hebrew, and the Pauline letters most definitely were not.
Hebrew word order has very little to do with discerning what the letters said if they were written in Greek.
I worked for years with educated folks who were ESL multilingual. Never was there a problem with "word order" when they wrote in either their native or other languages.
I am certain that Paul was (as Peter stated) about as highly educated as a scholar could be in his day. As such, he knew the languages, and because the very God in heaven was the inspiration, do you really consider there would be any word order problems?
All the church letters were written to Greek speaking assemblies, Paul would not have written them in Hebrew.
John was the pastor of the most prominent Greek speaking church (Ephesus) and would not write to them in Hebrew.
Luke was a Greek speaking, non-Hebrew, doctor of medicine, and was the scribe for much of Paul's writings - He would not write in Hebrew.
Timothy, Titus, Philemon were all Greek speaking. The letters would not have been written in Hebrew.
The Revelation was written to Greek speaking congregations, John would not have written it in Hebrew.
So what does that leave?
Matthew, Mark, and ... That's about all.
You have been totally misinformed if you hold that the NT was written primarily in Hebrew.