This is the only possible form of relationship between equals.

He was the only human form to live so high in the Cathedral.

"The only form of hope here is to continue to work."

It was the only form of retaliation he could make at the moment.

However, it should never be the only form of zoning.

Too often this is the only form of note in a student's file.

It may be the only form of relief I can look forward to.

You see me now in the only form that your limited mind can still accept.

These are the only forms of life in the universe.

It is usually the only form of exercise that I take.