Share Obligation , prohibition and necessity
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It was good to see you but it wasn't necessary for you to visit me in prison.
NEED
You ..... visited me in prison but it was good to see you.
needn't have
You mustn't open the door to strangers. ALLOWED
You ... the door to strangers
aren't allowed to open
Members of the jury are prohibited from talking to the press. MUST
Members of the Jury ..... to the press.
MUSTN'T TALK
It isn't necessary for suspects to answer police questions. HAVE
Suspects ..... answer police questions.
DON'T HAVE TO
His job involves collecting evidence at the scene of a crime. HAS
He ...... evidence at the scene of a crime.
has to collect
Was getting advise from a lawyer really necessary? NEED.
Did he really .... advise from a lawyer?
NEED TO GET
We mustn't / don't have to have a visa , do we?
don't have to
Shoes have not / must not be worn in the temple
must not
You must / had to go to the museum tomorrow - it's fascinating.
must
he didn't need to take/needn't have taken a jacket as he already knew it was going to be hot.
didn't need to take
You didn't need to invite/needn't have invited Becky, but I'm glad you did.
needn't have invited
