Este trecho do 'howtolearnenglish.co.uk'
, oferece boas explicações.
"The discovery phrase is a double edged sword."
Positive contractions are usually words that denote a positive meaning in one way or another. The contraction for the word ‘is’
and the word ‘has’
(s) is used with nouns
, names and question words
. So, instead of “Richard is happy
”, it could be “Richard’s happy
”. Instead of “there is a cat”, you could contract it to “there’s a cat."