68 Cognitive Exploration of Language and Linguistics
the comparative morpheme in stronger. In English, only the three major word
classes take inflectional morphemes.
A noun phrase like the house consists of two free morphemes, a grammatical
one and a lexical one. But the status of a so-called free grammatical morpheme
or function word like the is not as “free” as that of a really free morpheme such
as house. Whereas the noun house is a very central or prototypical member of
the category “free morpheme”, a determiner like the is rather a peripheral
member and cannot stand by itself. In some languages the article is even tied to
the noun like an affix, as in Norwegian huset ‘house + the’.
In English, nouns can be combined with four kinds of grammatical
morphemes: two sets of function words (determiner, preposition) and two sets
of inflectional morphemes (plural, genitive) as shown in (14).
(14) One of the carsof the boy’s father (got damaged)
Det. Prep. Det. Plural Prep. Det. Genitive
The two inflectional morphemes surrounding the noun (plural -s and genitive ’s)
are completely different in meaning, but they have the same set of allomorphs.
An allomorph is a variant of the same basic form, especially in pronunciation.
Thus the plural or genitive morpheme is phonologically realized as /z/ in cars or
in boy’s, as /s/ in books or Rick’s, and as /iz/ in buses or Charles’s. Alongside these
three allomorphs of the plural morpheme, there are also allomorphs in -en
(oxen), umlaut (mouse – mice) and the zero morpheme (sheep – sheep).
The function words in (14) are the various determiners the, one, and the
preposition of. The plural morpheme as in children and the genitive morpheme
can also be combined with one another as in the children’s mother.
The English verb has function words in the form of auxiliaries and inflec-
tional morphemes for tense and aspect. English can also combine tense with the
progressive aspect as in she is working/she was working or with the perfective
aspect as in she has worked/she had worked. The progressive and the perfective
are composed of two morphemes each, which function like a kind of circumfix
in that they surround one another and the verb form work. If the progressive
and the perfective are combined, the two morphemes of the perfective, have and
past participle, “circumfix” tense and the first part (be) of the progressive, and
the two morphemes of the progressive, be and present participle, “circumfix”
the past participle of the perfective and the verb work as in (15).