English research paper is a very interesting task, since you are welcome to investigate any aspect of the English language you like. If you have some difficulties with the choice of a topic for your English research paper, you may find some variants in this article.

• You may investigate the development of the English language starting from the Middle English period in your English research paper;
• You may also compare and contrast the main peculiarities of the Old English, Middle English and New English periods in your English research paper;
• You may think over the popularity of the English language all over the world in your English research paper;
• You may give your point of view on the process of word-building in your English research paper. For example, since there are a lot of different affixes in the English language and affixation is considered to be the most effective way of word-building in English, you may choose this very topic;
• You may also touch upon the problem of cognitive linguistics and comment upon the main notions of it in your English research paper, since this very trend of linguistics gains world popularity nowadays.

The topics for your English research papers are not confined to the ones suggested in the article, but they might give you a push to create your own issue.
 
Since it is an English research paper, you should pay special attention to the lexical composition of it. Try to avoid using informal language or, vise versa, a bit bookish words. Your language means should vary from sentence to sentence. It is highly stressed that you should meet all the requirements for English research paper writing. Do your best to cope with it.
 
Wish you good luck.