Intermediate (B1)

Present (Simple, Continuous, Perfect, Perfect Continuous) https://www.youtube.com/watch?v=TU78I3CRVlY
Action and state verbs
Past (Simple, Continuous, Perfect, Perfect Continuous) https://www.youtube.com/watch?v=cgskyc4mtEs, https://www.youtube.com/watch?v=CrwCvY3t0bI,
Used to do something и to be used to doing something
Future forms (to be going to, Present Continuous, will/shall) https://www.youtube.com/watch?v=05zOucVSLjQ, https://www.youtube.com/watch?v=Srk3vUFJ_lM&list=PLzT739jxSYU4d7KkOwD6w6KzTd86I0v4u
Modal verbs (must, have to, should, may, might, can, could, to be able to) https://www.youtube.com/watch?v=OBNL5ItQRWw
Gerund and Infinitive
Comparative and superlative adjectives
Used to do something и to be used to doing something
Articles: a/an, the, no article
Quantifiers (any, some, few, a lot of, a piece of)
First, Second and Third Conditional, Future time clauses https://www.youtube.com/watch?v=iV126DZZkO8
Relative clauses: defining and non-defining
Reported Speech: statements, questions, commands
https://www.youtube.com/watch?v=hh7Wia_VNrk
Passive Voice https://www.youtube.com/watch?v=QQFtNF4a8mY
Question tags
Phrasal verbs