In reference to true life all nouns are wrong, only verbs are true. When you say, "This is a tree," you are making a wrong statement existentially. Not linguistically, not grammatically, but existentially you are making a wrong statement, because the tree is not a static thing, it is growing. It is never in a state of is-ness, it is always becoming. In fact to call it a tree is not right: it is tree-ing. A river is rivering.
If you look deeply into life, nouns start disappearing, and there are only verbs. But that will create trouble in the marketplace. You cannot say to people, "I went to the rivering," or, "This morning I saw a beautiful treeing." They will think you have gone mad. Nothing is static in life, nothing is at rest.