Past routines: used to/ would/ get used to

• Use used to talk about past habits and states that do not happen now. In the negativeand question forms, use does not end with d
• Use would to talk about past habits but not past states 
• Use get used to to describe the process of becoming accustomed to a new situation

Expressing degrees of ability

• Use can to  talk about present or "general" ability
• Use will be able to talk about a future ability
• Use could or was/ were able to alk about past or general ability
• Use was/were able to, managed to, or succeeden in (+ing) to say what someone could do on a particular occasion

Conectors

• .     In spite of / Despite Link two contrasting ideas. Followed by a noun phrase. 
• .     Although / (Even) though Link two contrasting ideas. Followed by          a sentence. 
•       However / Nevertheless  Introduce a new idea which marks a contrast with previously stated ideas. Introduced by a comma

.