how can i improve my grammar

There are several ways to improve your grammar. Some of them are listed below:

• Brush up your concepts about every topic in grammar.
• Apply those concepts in your daily spoken language.
• Make positive statements negatives and vice versa.
• Try framing questions from affirmative sentences.
• Try converting sentences in active voice to passive voice.
• Convert sentences in past tense to present and future tenses and so on.