adjectives

adjectives: comparative and superlative

interrogative words (what, where...)

nouns: singular and plural

nouns: masculine and feminine

nouns: countable and uncountable

quantifiers: some, any, much, many, a lot of...

cardinal and ordinal numbers

present simple

past simple

present continuous

there + be: there is/there was...

modal verbs: can, could, should and would

infinitive and -ing forms

adverbs

prepositions

conjunctions: and, but, because...

sentences: types, word order...

adverb clauses: time, place, reason, purpose...