John Watters mentions that in Central Sudanic languages such as Ma'di and Western Nilotic, the perfective requires subject-verb-object (SVO) and the imperfective
requires a subject-object-verb (SOV) word order.
She covers oppositions between past tenses in French, relations between tenses in French and Polish, Stanislaw Karolak's semantic theory of aspect and its implication for translating Polish imperfective
verbs into French, factual and actual meanings of Polish imperfect verbs and the problems with their translation into French, and detailed translation rules.
Although these correspond morphologically to the weak stem of the perfect (Barschel 1986: 307), semantically they are much closer to an imperfective
One familiar proposal is that process verbs in the progressive or imperfective
form exhibit perfective entailments that accomplishment verbs do not.
The claim is merely that the agent must have knowledge of the action as in progress, under the imperfective
aspect "I am [phi]-ing," which does not entail the truth of the perfective "I will have [phi]-ed.
Chapter 8 offers a reexamination of the English progressive, with special attention devoted to the imperfective
The case report was written with verbs in either the imperfective
("was pulling out his gun") or perfective ("pulled out his gun") form.
which expresses imperfective
('continuative') aspect, a grammatical property which also occurs with synthetic forms.
They automatically take on an imperfective
As for the verbs in the present, it is noteworthy that this tense allows only imperfective
feminine, FUT = future, GEN = genitive, IAPTC = imperfective
adverbial, IMP = imperative, FNDF = indefmitive, INF = infinitive, LOCi = locative i, LOCii = locative ii, m.
But the imperfective
is relatively 'awkward,' in both English and German.