Parts of speech, sentence structure.
Present, past, future forms.
A, an, the usage.
Degrees of comparison, order.
In, on, at, to, for etc.
And, but, or, because, although.
Subject-verb, pronoun agreement.
Synonyms, antonyms, one word substitution.
Frequently used, idioms related.
Common English idioms.
Usage in sentences.
Passage understanding, inference.
Arrange sentences logically.