Countable - Uncountable nouns

First conditional

Present simple - present continuous - past simple

Second conditional

Reported speech

WAS-WERE and DID questions

Third conditional

Present Perfect: ever - never, just, gone - been

Present perfect simple or continuous

Zero Conditional

Was - were - there was - there were

Reported questions

Have to - don't have to

Modal verbs - Upper intermediate level

Wish Clauses