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On the basis of the degree of self-dependence

  • Free” morphemes can build up words by themselves, i.e. can be used “freely”.

  • Bound” morphemes cannot form words by themselves, they are identified only as component segmental parts of words. There are very few productive bound morphemes in the morphological system of English, the list of them is complicated by the relations of homonymy. Ex.: the segments –(e)s [z, s, iz] plural of nouns, the possessive case of nouns, the 3rd person singular present of verbs. (Other examples on p. 25 brown textbook Bloch)

Ex: handful, hand – free morpheme, ful – a bound morpheme On the basis of formal presentation

  • Overt” morphemes are genuine, explicit morphemes building up words

  • Covert” morphemes are identifies as a contrastive absence of morpheme expressing a certain function. It coincides with the notion of zero morpheme

The usual symbol of the covert morpheme is the sign of the empty set:

The word clock consists of 2 morphemes: the overt root morpheme and the covert (implicit) grammatical suffix of the singular.

On the basis of the segmental relation

  • Segmental” morphemes

  • Supra-segmental” morphemes include intonation, accents, pauses

The said elements of language should beyond dispute be considered signemic units of language, since they are functionally bound. They form the secondary line of speech. These units are functionally connected not with morphemes, but with larger elements of language: words, word-groups, sentences, supra-sentential constructions.

On the basis of grammatical alternation

  • Additive morphemes are outer grammatical suffixes, opposed to the absece of morphemes in grammatical alternation

  • replacive morphemes replace one another in the paradigmatic forms

Ex.: dr-I-ve – dr-o-ve – dr-I-ven; m-a-n – m-en

On the basis of linear characteristic

  • Continuous morphemes – a two-element grammatical unit is meant which is identified in the auxiliary word and a grammatical suffix

Be ……..ing – continuous verb forms (is going)

  • Discontinuous morphemes – uninterruptedly expressed

Types of morphemes as determined by their distribution by Nida E:

  • Bound vs. Free

Bound forms include prefixes, suffixes, infixes, replacives and some roots. Free morphemes are those which can be uttered in isolation. They always consist of a root. Stems, which consist of a root or a root plus some other morpheme, are by definition always bound.

A distinction may be made between potentially free, actually free and bound morphemes.

Ex. The word boy is actually free in such an utterance as Boy!, but it is potentially free in such a word as boyish.

  • Roots vs. Nonroots

Roots constitute the nuclei of all words. There may be more than one root in a single word, and some roots may have unique occurrences, like –cran in the word cranberry. All other distributional types of morphemes constitute nonroots.

It is not always easy to distinguish between roots and nonroots. This is because some roots become nonroots and vice versa.

Ex.: the nonroot –ism in such words as fatalism, pragmatism, fascism has become a full root in the sentence I’m disgusted with all these isms.

  • Roots vs. Stems

All bound roots are stems, but not all stems are roots. A stem is composed of 1) the nucleus, consisting of one or more roots, or 2) the nucleus plus any other nonroot morphemes, except the last structurally added morpheme that results in a word

The form man- in manly is at the same time a root and a stem.

The form breakwater is the stem of breakwaters, but it is not a single root. There are two roots break and water.

  • Nuclei vs. Nonnuclei

The nucleus of a morphological construction consists of a root or a combination of roots. The nonnucleus is made up of nonroots. In the construction boyishness, boy is the nucleus and –ishness – nonnucleus.

  • Nuclear vs. peripheral

A nuclear structure consists of a nucleus, or constitutes the head of a subordinate endocentric construction. A peripheral morpheme usually consists of a nonroot and is always “outside” of the nuclear constituent. In the word formal, form- nuclear, al- peripheral

  • Closing vs. Nonclosing

Certain morphemes “close” the construction to further formation. Ex. In English the use of a genitive suffix closes the noun to further suffixation. No suffix follows the genitive.

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