Hello everyone.
For a few past years I have been working on the [document](https://docs.google.com/document/d/1102D7b7Sv1UCnyTPSiHmDhuwyy6U_YXLezqodaAaj0s/edit?usp=sharing) encompassing almost all constructions needed to pass the JLPT N1 exam. One of the cool features is that you can actually check how often the construction is used in actual Japanese (according to the corpus named *Shōnagon*). What is more, many constructions are ordered thematically (so you can learn and memorize all the different ways of how to say “not only … but also” together). Many exemplary sentences come from various PC games, Japanese TV series, books, or Youtube videos by native Japanese, and they are ordered roughly according to their degree of difficulty for each grammar entry. Naturally, if you have an N1 entry, in some cases, even the first sentence might be difficult to understand if your current knowledge level is N4 or lower. Therefore, I would recommend this guide for those of you who have already mastered the majority of N3 constructions.
I hope that some of you will find this [grammar guide](https://docs.google.com/document/d/1102D7b7Sv1UCnyTPSiHmDhuwyy6U_YXLezqodaAaj0s/edit?usp=sharing) useful. It can also be downloaded from my [ResearchGate website](https://www.researchgate.net/publication/381093878_500_Japanese_Grammatical_Constructions) as .docx document. You can also download the [overview](https://www.researchgate.net/publication/381094310_EN_500_GRAMMAR) of all grammar entries within the guide provided in English. If you have some questions feel free to contact me. Nonetheless, the foreword section should hopefully answer at least some of your questions.
Wish you all good luck studying Japanese!
by KnowYourJapan