Respuesta:
I was at school yesterday
I wasn´t at school yesterday
last night the dog was in the garden
Last night the dog wasn´t in the garden
my sister was ill last week
My sister wasn´t ill last week
my friends was in Mendoza last winter holidays
My friends wasn´t in Mendoza last winter holidays
john and Elton were good friends
John and Elton weren´t good friends
I was 12 years old last year
iwasn´t 12 years old last year
we were happy after the match
We weren´t happy after the match
the children were in their bedrooms last night
The childrens weren´t in their bedrooms last night
my father was happy when he was young
My father wasn´t happy when he was young
you were sad yesterday evening
You weren´t sad yesterday evening
