In this post, I will introduce a website for teaching and practising English grammar: Perfect English Grammar.
An English teacher named Seonaid administrates and supports this website. It is full of different kinds of English grammar exercises as pdf. You can download and use them easily. Moreover, there are explanations of grammar rules of English, and some infographics of some tenses in English. Seonaid gives some piece of advice to improve our English knowledge. You can see them here.
The website: http://www.perfect-english-grammar.com
