'Forms' in the Bible

It is the smallest of all seeds, and yet when full-grown it is larger than any herb and forms a tree, so that the birds come and build in its branches."

They were secret backbiters, open slanderers; hateful to God, insolent, haughty, boastful; inventors of new forms of sin, disobedient to parents, destitute of common sense,

various forms of official service, and yet one and the same Lord;

For brute nature under all its forms--beasts and birds, reptiles and fishes--can be subjected and kept in subjection by human nature.