Modals

Question 1

What’s the difference between didn’t need and needn’t ?

Answer 1

Didn’t need : something was not done because it was incessant

Ex: i didn’t need to ask the woman her name, i recognized her immediately

Needn’t + verb : something uncessary took place

Ex: she needn’t worry about me, i am fine

Question 2

What is the negative if must ?

Answer 2

Can’t

Question 3

Mustn’t is for ?

And needn’t and don’t have to ?

Answer 3

Negative obligation

Lack of obligation

Question 4

Ought to/ Oughtn’t to ?

Answer 4

Formal