CEDICT
not at all; by no means
Wiktionary
It's not easy.
Source: Tatoeba
We are not stupid.
It was a modest outcome.
The result was modest.
English is not hard to learn.
Not that it's not possible.
Not that it's unacceptable.
English is not difficult to learn.
But the coffee's not good.
There were not many present.
It doesn't surprise me.
I didn't mean to interrupt you.
I actually never knew that.
Appearance isn't all.
I don't mean to nag you.
He doesn't altogether trust me.
Arabic isn't complicated.
It isn't easy to train dogs.
It is not easy to train dogs.
It's not easy to train dogs.
His explanation really isn't clear.