He wrote an ancient poem using the literary language form.

This textbook explains mainly in colloquial form.

He is completely nowhere to be seen.

Her necklace was in the beautiful shape of a butterfly.

This sentence is using the inclusive form.

This grammar rule is using the exclusive form.

Exclusive form of grammar is used to refer to a specific object only.

The characteristic of annelids is that their bodies are divided into ring-shaped segments.

This butterfly valve is used to control the flow of fluid.

He explained in detail about the structure of the sphenoid bone.