Tworzenie przeczeń w języku angielskim polega na dodaniu partykuły not do:
· czasownika głównego to be:
She is not/isn’t here.
Mark was not/wasn’t aware of the fact.
· czasownika posiłkowego (pomocniczego) to be, to have, will:
We were not/weren’t at home when you phoned.
I have not/haven’t seen Rita for a long time.
That will not/won’t take long.
· operatora do/does (czas Present Simple) i did (czas Past Simple)
I do not/don’t know her.
My brother does not/doesn’t live here any longer.
We did not/didn’t go to the cinema last night.
· czasowników modalnych:
She cannot/can’t skate.
You should not/shouldn’t spend so much money on clothes.
W zdaniach potocznych, zwłaszcza w mowie, rzadziej na piśmie, stosujemy formy skrócone:
is + not = isn't He isn't French.
are + not = aren't They aren't at work.
was + not = wasn't Mia wasn't hungry.
were + not = weren't We weren't doing anything special.
have + not = haven't I haven't read this book yet.
has + not = hasn't Bridget hasn't got a car.
will + not = won't I won't do that!
do + not = don't We don't speak English.
did + not = didn't Susie didn't finish her school.
can + not = can't I can't swim.
could + not = couldn't Bob couldn't play the piano when he was 10.
should + not = shouldn't I shouldn't be late for school.
Nie istnieje forma skrócona od czasownika am + not:
am + not I'm not hungry.