LESSON VIII
The Copula
In the simple sentences of Lesson I you have learned the verb
tá which means “is” in such phrases as “the hat is on the
table” or “the day is cold, the bag is empty,” etc. But in
sentences of definition or identity, you must use a different
verb, namely is (rhymes with Eng. “hiss”), which is called
the copula, because it merely joins two n0tions.
1
The forms
are easy, as this verb has no persons or number and only
two tenses, present is and past (and conditional) ba
2
; but the
syntax of these sentences is troublesome and requires
careful study and practice. Definition is to say what a per-
son or thing is: “it is a book, a horse, a hill”, etc. A sentence
of identity says who or which he, she or it is: “it is my
book, his horse”; “he is John Smith”. And these two types
have slightly different constructions. You have seen that
é, í, iad are the forms of the pronoun as object of a transitive
verb. They are also the forms used as subject of the copula.
(a) The sentence of definition is then is leabhar é “it is a
book”, is cloch í “it is a stone”, is fir iad “they are men”
(verb-predicate-subject); or, with the demonstratives so,
seo “this” and san, sin “that”:
3
is leabhar é seo “this is a
book”, is cloch í sin “that is a stone”, is fir iad sun “those
are men”.
(b) In the sentence of identity the pronoun occurs twice,
before and after the noun, unless the subject is the demon-
strative. Suppose you want to say simply “it is the book”
(not the paper or the pen), you must say is é an leabhar é;
1
For those who know Spanish, the distinction between ser and
estar will be helpful.
2
See p. 16.
3
So and san after a broad consonant or vowel, seo and sin after a
slender. These are here fully stressed, not enclitic as on p. 49.
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