Are There Multiple Resonance Structures for HCN?

[Element1674]

Show all possible structural diagrams for HCN.

Isn't there just one? H (single bond) C (triple bond) N
I can't draw a resonant structure because there is none (resonant means only moving of the bonds not the atoms, no?). I don't understand.

 

[ChiralWaltz]

You can also move the electrons. Not all resonance structures have balanced charges. The one we pick for representation is the most stable molecule. Sorry for the delayed response.