never in a month of Sundays

a wild goose never laid a tame egg

Most things are inherited and predetermined.

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.

month in, month out

During every month; continuously.

month of Sundays

A very long time; a period regarded as too long.

never in a million years

Absolutely not.

never mind

Let alone; much less.