Structurally morphemes fall into three types

Speaking of word-structure on the morphemic level two groups of morphemes should be specially mentioned;

To the first group belong morphemes of Greek and Latin origin often called combining forms, e.g. telephone, telegraph.

The second group embraces morphemes occupying a kind of intermediate position, morphemes that are changing their class membership.

According to the number of morphemes words are classified into monomorphic and polymorphic.

Monomorphiс or root-words consist of only one root-morpheme, e.g. small, dog, make, give, etc.

Pоlуmоrphiс words according to the number of root-morphemes are classified into two subgroups:

polyradica l words, i.e. words which consist of two or more roots. Polyradical words fall into two types:

1) polyradical words which consist of two or more roots with no affixational morphemes, e.g. book-stand, eye-ball, lamp-shade, etc. and

2) words which contain at least two roots and one or more affixational morphemes, e.g. safety-pin, wedding-pie, class-consciousness, light-mindedness, pen-holder, etc

Monoradical words fall into 3 subtypes:

1) radical-suffixal words, i.e. words that consist of one root-morpheme and one or more suffixal morphemes, e.g. acceptable, acceptability, blackish, etc.;

2) radical-prefixal words, i.e. words that consist of one root-morpheme and a prefixal morpheme, e.g. outdo, rearrange, unbutton, etc.

3) prefixo-radical-suffixal, i.e. words which consist of one root, a prefixal and suffixal morphemes, e.g. disagreeable, misinterpretation, etc.

Three types of morphemic segmentability of words are distinguished: complete, conditional and defective.

Complete segmentability is characteristic of a great many words the morphemic structure of which is transparent enough, as their individual morphemes clearly stand out within the word lending themselves easily to isolation.(teach-er,work-er)

Conditional morphemic segmentability characterises words whose segmentation into the constituent morphemes is doubtful for semantic reasons.

Defective morphemic segmentability is the property of words whose component morphemes seldom or never recur in other words.

Morphemic analyses – the aim is to state the number and type of morphemes the word possess.

The procedure generally employed for the purposes of segmenting words into the constituent morphemes is the method of Immediate and Ultimate Constituents. This method is based on a binary principle, i.e. each stage of the procedure involves two components the word immediately breaks into.The morphemic analysis according to the IC and UC may be carried out on the basis of two principles: the so-called root principle and the affix principle. According to the affix principle the segmentation of the word into its constituent morphemes is based on the identification of an affixational morpheme within a set of words; for example, the identification of the suffixational morpheme -less leads to the segmentation of words like useless, hopeless, merciless, etc., into the suffixational morpheme -less and the root-morphemes within a word-cluster; the identification of the root-morpheme agree- in the words agreeable, agreement, disagree makes it possible to split these words into the root -agree- and the affixational morphemes -able, -ment, dis-. As a rule, the application of one of these.

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