 Re: Contractions - it was - it's
"It was" contracts to 'twas, which is no longer in use in Modern English. "It was" wouldn't contract to "It's" because it has a word-initial consonant w-. There are only two possibilities for "It's": It is, It has. The contraction is possible because "is" has a word-initial vowel, i-, and "has" has word-initial h-. |