Significados de frequently ungrammatical en inglés

I know not what certain critics mean, when they say that Shakspeare is frequently ungrammatical.

I know not what certain critics mean, when they say that Shakespeare is frequently ungrammatical.

His diction was not only inelegant, but frequently ungrammatical, always vulgar; his cadences false, his voice unharmonious, and his action ungraceful.

Rather too frank in her speech, and frequently ungrammatical and slangy, but I don't know what we should do without her.