~とは限らない (not necessarily)

Just because there are no complaints doesn't necessarily mean the customers are satisfied.

I-I won't always be won over just because you bribe me with food, you know!

The elderly aren't always wiser than the young.

The law isn't always fair.

Just because the mother happens to be beautiful doesn't necessarily mean her daughter will grow up to be a beauty.

Conservatives aren't necessarily reactionaries.

Investing overseas denominated in your own currency doesn't always turn a profit.

Theory and practice don't always go hand in hand.

Brokers desperate for profit don't always play by the rules.

We aren't always home on Sundays.

Mother isn't always an early riser.

Mother isn't always at home.

My father isn't necessarily free every Sunday.

Wealth doesn't necessarily bring happiness.

Poor people are not necessarily unhappy.

Bitter medicine doesn't necessarily work well.

Beautiful flowers don't always smell good.

Beautiful things are not always good.

Being beautiful isn't always the same as being good.

She isn't necessarily completely satisfied.

It's not necessarily the case that both parents are in good health.

Theory and practice don't always go hand in hand.

Theory and practice don't always go together.