I couldn’t play computer
games when I was six.
Shecould swim when she was three.
Hecouldn’t ride a cycle when he was five.
Shecould walk when she was two and a half.
We could solve maths sums of class sixth when we were in class fifth.
‘couldn’t’ are used to talk about our abilities in the past.
She could play chess when she was seven.
I couldn’t eat chapatti when I was sick.
He could read when he was five.
I couldn’t run when I was a baby.
‘could’ and ‘couldn’t’, infinitive is used without ‘to’.
I could make a fruit salad when I was seven.
My father couldn’t swim when she was a kid.
She couldn’t speakwell before she went to school.
My sister couldn’t sing well until she was nine.
We say… We don’t say…
I could use a computer when I was three. (NOT I could to use a computerwhen
I was three.)
My brother couldn’t ride a bike when he was fifteen. (NOT My brother couldn’t riding a bike when he was fifteen.)