Both the usual present imperative (e.g. fac) and the future imperative (e.g. facito) are attested. But are they ever used together so that the tenses are contrasted?
In terms of a concrete example, are orders like the following found in the literature? Or is there something else that suggests that such constructions are valid or invalid?
Abi, redito!
Go, but come back later!
In Allen & Greenough p.284; section 449 (Imperative Mood):
"Phyllida mitte mihi, meus est natalis, Iolla; cum faciam vitula pro frugibus, ipse venito" (Ecl. 3.76);
"Send Phyllis to me, it is my birthday, Iollas; when I [shall] sacrifice a heifer for the harvest, come yourself."
Therefore, "mitte" for the present tense imperative; "venito", the future.
"dic quibus in terris, etc. [sic], et Phyllida solus habeto." (id. 3.107);
"tell in what lands etc., and have Phyllis for yourself."
Similarly, "dic"--present; "habeto"--future.
The following is found in the writings of Bernardino Stefonio:
abi: requirito hominem ubi ubi est.
