Word-form derivation

Synthetic Types

 They may be enumerated in a very short space.There is the ending -s (-es), with three variants of pronunciation, used to form the plural of almost all nouns, and the endings -en and -ren, used for the same purpose in one or two words each, viz. oxen, brethren (poet.), children.

There is the ending -'s, with the same three variants of pronunciation as for the plural ending, used to     form what is generally termed the genitive case of nouns.¹

For adjectives, there are the endings -er and -est for the degrees of comparison.

For verbs, the number of morphemes used to derive their forms is only slightly greater. There is the ending -s (-es) for the third person singular present indicative, with the same three variants of pronunciation noted above for nouns, the ending -d (-ed) for the past tense of certain verbs (with three variants of pronunciation, again), the ending -d (ed) for the second participle of certain verbs, the ending -n (-en) for the second participle of certain other verbs, and the ending -ing for the first participle and also for the gerund

  Sound Alternations

By sound alternations we mean a way of expressing grammatical categories which consists in changing a sound inside the root.

This method is much more extensively used in verbs, such as write — wrote — written, sing — sang — sung, meet — met — met, etc.

Analytical Types

These consist in using a word (devoid of any lexical meaning of its own) to express some grammatical category of another word.

There can be no doubt in Modern English about the analytical character of such formations as, e. g., has invited or is invited, or is inviting, or does not invite. The verbs have, be, and do have no lexical meaning of their own in these cases. The lexical meaning of the formation resides in the participle or infinitive following the verb have, be or do. Some doubt has been expressed about the formations shall invite and will invite. There is a view that shall and will have a lexical meaning.¹ We will not go into this question now and we will consider shall and will as verbs serving to form the future tense of other verbs. Thus, have, be, do, shall, and will are what we call auxiliary verbs, and as such they constitute a typical feature of the analytical structure of Modern English.