MUST / MUSTN'T
She mustn't go inside. / The dog mustn't go inside.
MUST / MUSTN'T
She must do her homework..
Where were your parents?
They were upstairs.
Was your great-grandfather on the balcony?
No, he wasn't. He was donwstairs.
MUST / MUSTN'T
They must be careful.
MUST / MUSTN'T
He mustn't go inside.
Where was your daughter?
She was on the balcony.
Were your cousins upstairs?
Yes, they were.
MUST / MUSTN'T
She mustn't go upstairs.
MUST / MUSTN'T
You mustn't touch the bread.
MUST / MUSTN'T
They mustn't go outside. / They must stay inside.
MUST / MUSTN'T
They mustn't touch the fence.
MUST / MUSTN'T
You must help.
Where were your grandparents?
They were inside.
Where was your granddaughter? [next to]
She was next to the fence.
Were your neighbours next to the fence?
Yes, they were.
Was your great-grandmother outside?
No, she wasn't. She was inside
Where was your son?
He was downstairs.
MUST / MUSTN'T
He mustn't run.
Where was your son?
He was outside.
MUST / MUSTN'T
She mustn't use her mobile phone.
MUST / MUSTN'T
She must have a ticket.