I knew I had some milk at home, so I DIDN´T NEED TO BUY / NEEDN´T HAVE BOUGHT ANY
didn´t need to buy
I bought some milk, but when I got home I found we already had some, so I DIDN´T HAVE TO BUY , NEEDN´T HAVE BOUGHT any.
needn´t have bought
I don´t let my daughter use her cell phone after 10 pm. ( ALLOWED)
She isn´t allowed to use her cell phone after 10 pm.
It´s essential that you read Frakenstein for the test. ( had better)
You had better read Frankenstein for the test.
He had asked several people until she finally SUCCEEDED IN / MANAGED TO finding some help.
succeed in
I tried to climb that montain once, but I DIDN´T MANAGE/COULDN´T to get to the top because of the bad weather.
didn´t manage
He was SPOOKY/STARTLED when dozen of people came to his office.
STARTLED
