You can do it either now
or later.

You can have either a
dog or a cat.

You'll either leave this
house or I'll call the
police.

He's neither friendly nor
helpful.

It concerns neither you
nor me.

You will do it whether
you like it or not.

I don't know whether to
believe it or not.

Both you and your
brother can take part.

She's not only beautiful,
but also a great actress.

Dad not only washed the
car, but he also waxed it.