Common English Contractions:

 

 Contractions grammatically legal, but not commonly used in either speaking or writing:

  • Where’d (where had)
  • Why’d (why had)
  • When’d (when had)
  • Why’d (why would)
  • What’d (what would)
  • When’d (when would)

 

English contractions you should never use:

Amn’t (am not), Willn’t or Win’t (will not), I’s.

 

commented

It is very useful collection I think. They could be confused easily... Thanks a lot!
...

LanguageLearningBase.com (short: llb.re) is an online community for learning foreign languages.
It represents an open knowledge base. Every member can share and gain knowledge about a new language.