Laudator Temporis Acti

Charles Dickens, Little Dorrit, Book II, chap. 12:

In the grammar of Mrs Merdle's verbs on this momentous subject, there was only one mood, the Imperative; and that Mood had only one Tense, the Present. Mrs Merdle's verbs were so pressingly presented to Mr Merdle to conjugate, that his sluggish blood and his long coat-cuffs became quite agitated.

Charles Dickens, Little Dorrit,Book II, chap. 32:

'Is any gentleman present,' said Mr Pancks, breaking off and looking round, 'acquainted with the English Grammar?'

Bleeding Heart Yard was shy of claiming that acquaintance.

'It's no matter,' said Mr Pancks, 'I merely wish to remark that the task this Proprietor has set me, has been never to leave off conjugating the Imperative Mood Present Tense of the verb To keep always at it. Keep thou always at it. Let him keep always at it. Keep we or do we keep always at it. Keep ye or do ye or you keep always at it. Let them keep always at it.'