Poetry- STANZAS and difference of blank vs free verse

Couplet
2 lines

Tercet
3 lines

Quatrain
4 lines

Cinquian
5 lines

Sestet
6 lines

Septet
7 lines

Octave
8 lines

Blank Verse
Any poetry that DOES have a set metrical pattern (usually iambic pentameter), but does not have rhyme

Free Verse
-Most modern poetry no longer follows strict rules of meter or rhyme, especially throughout an entire poem
-frankly, has no rules about meter or rhyme whatsoever