B2 grammar about Past necessity

Past necessity

A

Needn't have + past participle

This structure is used to talk about an action which was unnecessary. It indicates that the subject performed the action.

I needn't have prepared so much food for the party; everyone had eaten before they came. (I prepared lots of food but I realized afterwards that it wasn't necessary)

B

Didn't need to + infinitive

This structure is used to talk about an action which was unnecessary. It usually indicates that the subject did not perform the action.

I didn't need to prepare very much food for the party; everyone said they would bring something to eat. (I didn't prepare lots of food as I knew it wasn't necessary)

برای دسترسی به دروس بیشتر به لینک زیر مراجعه کنید.

گرامر صفر تا صد زبان انگلیسی

لسنینگ از مبتدی تا پیشرفته

لغات زبان انگلیسی به تفکیک موضوع

درک مطلب از سطح مبتدی تا پیشرفته

تمامی موضوعات آیلتس اسپیکینگ پارت یک، دو و سه همراه با جواب