Until lately, little effort was made to record the language in written form.

Nothing of his has come down to us in a written form.

They must be out, in written form, to assume their full power.

But I assumed that you did not put everything into written form.

At the end of key stage 4 the response should be in written form only.

To save power, she took the message in written form.

It would be fair to answer them in written form as I do not want to take too much of your time.

I have to work this report up into some kind of written form.

Several speeches appear in written form for the first time.

More often, they take an oral rather than a written form.