Linked forms in which the existence of "zo, nam, ya, ka" caused the sentence to end with an attributive form became marginalized and disrupted in format, with the generalization of an attributive form being used as an end-form.
連体形で文末を結ぶ「ぞ・なむ・や・か」の係結びは、連体形終止の一般化と共に意義を失い、形式も混乱していった。