These cells are also known as CD4 T cells because they express the CD4 glycoprotein on their surfaces.

There's no need for violence.

It's unnecessary.

This isn't necessary.

It isn't necessary.

It's not necessary.

That isn't necessary.

That's not necessary.

Bailing out inefficient automobile companies like General Motors only slows down the rate of progress.

Liberalism's enemies are real enough. There is no need to imagine them.

No intervention by government is needed.

There is no need to imagine them.

The feeling of having to look constantly over my shoulder.

That isn't necessary, is it?

No, it's not necessary.

I think it's not necessary to do that.

I think that it's not necessary to do that.

I think it isn't necessary to do that.

I think that it isn't necessary to do that.

If you compile the source code yourself, you should take care not to compile different versions of the KDE packages.

Ring the bell in an emergency.

Necessity

Alas, there is no urge to do this.

In case of emergency, call 119.

I assure you that isn't necessary.

It isn't necessary, is it?

There's no need to explain.

In fact, this requirement is rooted in history.

However, intervention would not be required at these margins.

The teacher simply offered to deliver if needed.

I'm sure that's not necessary.

It won't be necessary, I think.

You know this isn't necessary.

You know this isn't necessary.

Tom said it wasn't necessary.

We are authorized to use force if necessary.

We do not use force unless necessary.

We don't use force unless necessary.

In 1892, the sled was transformed by L. P. Child, an Englishman.

There is no need for him to work.

No need to leave them.

Don't take unnecessary risks.

There's no need to do that.

There's no need to call a doctor.

You don't need to lie.