86 HISTORICAL ASPECTS
the grammatical number, although constructiones ad sensum are possible. There is no
unmarked member in this dimension, although there is a very slight tendency for singular
persons to lack formal marking. Verbs are indifferent as to gender, e.g. caraid is ‘he/she/
it loves’. The gender distinction in the 3 sg. can only be conveyed by the optional use of
notae augentes: masculine caraid- sem ‘he loves’ and feminine caraid- si ‘she loves’.
Mood: Old Irish distinguishes the two universal modalities ‘realis’ and ‘irrealis’. The
realis indicates that something belongs to the known, experienced world (or that the speaker
believes so), the irrealis speaks of imagined, desired worlds. The realis is grammatically
represented by the ‘indicative’ mood. It is the unmarked category of this dimension and
it is further split into the three tenses past, present and future (see further under tense and
aspect). The irrealis is represented by the moods ‘imperative’, ‘conditional’, and ‘sub-
junctive’ (McQuillan 2002: 246). The imperative is the mood for immediate orders.
Morphologically it stands apart in the verbal system (reminiscent of the vocative in the
nominal system, to which it is conceptually related) because it is indifferent to the dimen-
sions relativity, perspectivity and dependency. The conditional refers to a hypothetical event
that is or was contingent on another set of circumstances. In this sense it expresses poten-
tiality and irreality. The conditional vacillates around the margins of mood and tense and
aspect in that it also supplies a future for a past frame of reference. The subjunctive char-
acterizes a verbal action as to some degree removed from factuality; therefore its semantic
range goes from the expression of wishes over uncertainty to irreality. There are two formal
categories of subjunctive, the ‘present subjunctive’ and the ‘past subjunctive’. The former
fulfi ls the functions of the subjunctive in a present or future frame of reference, the latter in
a past frame of reference. By necessity, the latter is further removed from reality. In comple-
ment clauses that depend on verbs of saying, commanding or thinking, the modal meaning
of the subjunctive has receded in favour of being a mere marker of subordination.
Tense and aspect: This category ultimately comprises two different dimensions,
which for practical reasons cannot be separated. Old Irish distinguishes the three tenses
‘present’, ‘past’ and ‘future’. The present is encoded by the morphological category
‘indicative present’, which additionally can give expression to events without time ref-
erence (‘generic action’) and to past events (‘historical present’). Future events must be
encoded by the morphological category ‘future’. By necessity, the future touches on the
irrealis mood. In the past, an aspectual distinction is made between a perfective ‘preter-
ite’ and an imperfective ‘imperfect’. The preterite denotes actions that were completed in
the past; it is frequently used for narrative purposes. The imperfect encodes repeated or
customary action in the past. Strictly speaking, there is no unmarked member in this cat-
egory. However, there is a tendency during the later Old and Middle Irish periods for the
underlying stem of the present tense to become the default stem and to provide the deriva-
tional basis for all other stems.
Voice (or diathesis): This is a binary dimension, comprising the two categories ‘active’
and ‘passive’. The active voice is the semantically unmarked member of the opposition
and fi nds two formal expressions, the so- called ‘active endings’ and the ‘deponent endings’
(see deponentiality below). There are special active endings for all persons and numbers.
The passive voice is marked with special endings only on 3rd persons. The 3 sg. passive
functions also as an impersonal form and as such supplies the passive voice for the 1st
and 2nd persons in constructions with infi xed object pronouns. Every Old Irish verb, even
intransitives, can be passivized, if only to create an impersonal form. It is possible but not
obligatory to mention the agent of a passivized transitive verb in prepositional phrases.
Relativity: Old Irish fi nite verbs can take on the two states ‘non- relative’ and ‘rela-
tive’. Non- relative is the unmarked member of the binary opposition. Relative means that