In rapid speech, the contraction n't often behaves as an enclitic, attaching to the preceding verb.

The enclitic particle attached to the pronoun altered the meter of the verse.

In many languages, enclitics attach to a host word and alter its meaning or function.

The pronoun attached enclitically to the verb changed the sentence's emphasis.

In his paper, he argued that the enclitical particle in colloquial speech loses its stress and merges with the host word.