This genitive case is sometimes changed into an ablative, either with or without a preposition, as

Putavi de calendis Aprilibus te esse admonendum:

I thought that you ought to be reminded of the first of April.

Young reader! were you ever, on the above anniversary, sent to the cobbler’s for pigeons’ milk, and dismissed with strap-oil for your pains? Were your domestic and alimentive affections ever sported with by the false intelligence that a letter from home and a large cake were waiting for you below! Or worse, did some waggish, but inconsiderate friend ever send you a fool’s-cap and a hamper of stones?

Reader, of a more advanced age, were you ever?— but we cannot go on—Oh! Matilda—we might have been your slave—but it was cruel of you to sell us in such a manner.

Uterque, both, nullus, none, alter, the other, neuter, neither of the two, alius, another, ambo, both, and the superlative degree, are joined to verbs of that kind only in the ablative case, as

Fratris, an asini, trucidationis accusas me? Utroque, sed sceleris unius:

Do you accuse me of killing my brother or my donkey? Of both; but of one crime.

Satago, to be busy about a thing, misereor and miseresco, to pity, require a genitive case, as

Qui ducit uxorem rerum satagit: