Used to / Would

https://www.youtube.com/watch?v=e4hhxeRKjH4

               

https://www.youtube.com/watch?v=LtogKTN5rzc

Used to / Would Exercises

https://elt.oup.com/student/solutions/upperint/grammar/grammar_02_012e?cc=co&selLanguage=en

http://learnenglish.britishcouncil.org/en/grammar-exercises/past-habit-used-towouldpast-simple

Connectors

Simple, Compound, & Complex Sentences

https://www.youtube.com/watch?v=DvhC0eSIb3g

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

Linkers / Connectors

http://aprendeinglessila.com/2013/05/escribir-en-ingles-conectores/

http://aprendeinglessila.com/2013/06/escribir-en-ingles-conectores-2/

https://www.saberespractico.com/estudios/idiomas-estudios/lista-de-conectores-linguisticos-en-ingles/

http://writeenglish.net/usinglinkers1-1.php

http://adperverie.weebly.com/uploads/1/1/0/6/11069919/voc__linkers-and-connectors__y.pdf