Videos to help with English: 

Similes and metaphors: 

https://www.youtube.com/watch?v=uoSBVNUO2LU

Modal verbs: 

https://www.youtube.com/watch?v=InCdPzd2hDw

Fronted adverbials:

https://www.youtube.com/watch?v=pCpJXDy0tb8

Conjunctions: 

https://www.youtube.com/watch?v=hIVL38Is5Ac