Is this a complete sentence "she was glad that it was a weeknight; traffic was almost nonexistent”?

depends

Explanation:

it could go

She was glad that it was the weeknight, traffic was nonexistent, so she could go home.

or just use

She was glad that it was the weeknight, traffic was nonexistent.

blank verse is often confused with free verse. free verse avoids traditional poetic forms such as rhyme schemes and conventional metres and can follow any pattern the poet wishes which means that the verses and lines can differ in length as the poet chooses. however blank verse like free verse is also unrhymed but each line in blank verse has roughly the same number of stresses and syllables, usually following the iambic pentameter