Verneinen Sie die folgenden Sätze in der jeweiligen Zeitform.
He has left for London this morning.
He has not left for London this morning.
Before we met, I had lived in Paris.
Before we met, I had not lived in Paris.
You will break my computer again.
You will not (won't) break my computer again.
She bought some butter.
She did not (didn't) buy some butter.
We could have been in Florida now.
We could not (couldn't) have been in Florida now.
He has left the house and is gone now.
He has not (hasn't) left the house and he is not gone now.
I will be waiting for you in front of the theatre.
I will not (won't) be waiting for you in front of the theatre.
We are going to have fun tonight.
We are not (aren't) going to have fun tonight.
They have met before.
They have not (haven't) met before.
She has already been to America.
She has not (hasn't) been to America, yet.