now or never

a wild goose never laid a tame egg

Most things are inherited and predetermined.

any time now

Very soon.

first of never

A nonexistent day; a day that will never come.

I never did

An exclamation of great surprise.

I never miss

I am aware of what is going on; I know what is happening.

never in a million years

Absolutely not.

never in a month of Sundays

At no time whatsoever.

never mind

Let alone; much less.