Just start with the basics;that is,making a ordinary sentence and day by day take a step further. I can suggest you Essential Grammer in Use [Raymond Murphy] third edition. I believe that it will be good start for you.
Basic English Grammar by Betty Azar is excellent. It's a large red book. It is the best in my opinion.
Differences between present perfect and present perfect continues
Presentation language used to arise discussion
What is the difference between effect and affect?
In what type of sentence we have to use um.........,huh......, er.......
German phonetics with examples
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