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O N S E T	NUCLEUS
EXAMPLES
-	p	p	All the	prop, pure, please
-	b	b	English	break, blow, beauty
-	t	t	vowel	try, tune
-	d	d	phonemes	dry, dew
-	k	K	(20) may	cry, close, cure, quite
-	g	g	come in	grow, glow, gewgaw guano
-	-	tƒ	the	-
-	-	dз	position	-
-	f	f	of nucleus	frost, flow, few
-	v	v		View
-	θ	θ		throw, thwart
-	-	ð		-
S	s	s		slow, suit, swift, stand
-	-	z		skin, spoon, smart, snow, sphere
-	ƒ	ƒ		shrink
-	-	З		-
-	h	h		hew
-	l	l		lunar
-	-	r		-
-	-	j		-
-	-	w		-
-	m	m		muse
-	n	n		new
-	-	ŋ		-

In the position of the first element of two – consonant clusters the following plosive and constrictive consonants may participate: [p b t d k g m n; f v θ ʃ s z h l]. The sonorants [r j w ŋ], affricates [tʃ dƷ] and fricatives [ð, Ʒ] are not found in the first position of two-member onsets. The second element of such onsets may be formed by the phonemes [r, j, l, w, m, n, f, p, t, k], e. g. [breik, kli:n, vju:, swift, stænd, skri:n, spu:n, snou, sfiə].

The English syllable onsets with 3 consonants theoretically may have 24 ³ = 13824 combinations, but actually only 9 combinations exist as the onsets in the vocabulary system of English: [spr, str, skr, spl, spj, stj, skj, skw]. Examples for three – consonant clusters; spread, street, scruple, sclerosis, splendid, spurious, stupid, skew, square.
As it is seen from the examples the first element of the three – member consonant clusters is represented by the only fricative consonant [s], the second element is occupied by plosives [p, t, k] and pre – nucleus (pre – vocalic) position is taken by fricative sonorants [r, l, j, w]
The analysis of the nature of nucleus in English syllables gives us grounds to affirm that all the 20 vowel phonemes of English may perform the functions of syllable nucleus in English words.
Investigations made in the nature of onsets in English syllables allow us to make the following conclusions:
1) The distribution of phonemes in the syllabic structure follows the rules of phonotactics which are specific enough for the English language.
2) The onsets of English syllables may consist of one, two and three consonant clusters.
3) The nasal sonorant [ŋ] never occurs in the onset of an English syllable.

4. 
   The affricates [tƒ, dз], the nasal sonorant [ŋ] and the glottal [h] do not occur in complex onsets.
   
5. 
   The nucleus of the syllable has the maximal sonority and the pre – nucleus position in two - and three – member onsets is occupied by sonorants.
   
6. 
   The first element in all three – consonant clusters is always taken by the voiceless fricative consonant [s].
   
7. 
   Voiceless plosive consonants [p t k] occupy the second position in three member onsets.
   

II.3. Phonotactic features of syllable codas
The nature of the coda in the structure of English syllables is one of the complicated problems of phonotactics in the language and it needs a detailed analysis. In this section we try to investigate the nature of syllable codas and their phonotactic features as the component of the syllable in detail. The nature of the coda in the structure of English syllables is one of the complicated problems of phonotactics in the language and it needs a detailed analysis. Phonotactic possibilities of a language determine the rules of syllable division and the capability of consonant and vowel phonemes to be combined. In our research we tried to investigate the nature of the coda substructures of the syllable – VC (coda1), VCC (coda 2), VCCC (coda3), VCCCC (coda 4) and all the possible variants of codas with maximal allowable components in the syllable and their combinability with the nucleus. The investigations are based on the materials taken from “English pronouncing dictionary”[25].
The analysis of the internal structure of syllables in English words has shown that in the position of the nucleus we may find all the English vowel phonemes and they combine with the elements of the coda (consonants) according to phonotactic rules of the language.
The analysis of the nature of nucleus in English syllables gives us grounds to affirm that all the 20 vowel phonemes of English may perform the functions of syllable nucleus in English words.
The analysis of codas in words has shown that the English language allows syllable codas with one, two, three and four consonants. So in English the syllable is formed by any vowel alone or in combination with one or more consonants – not more than four in codas. The analysis of English codas of the type VC [i:t], VCC [i:ts], VCCC [a:sks], VCCCC [(t)eksts] and the distribution of phonemes in these subtypes give us the ground to speak about the following results.
According to the number of participating segments in a syllable the following types may be distinguished- light, heavy and super-heavy.
English syllable codas with one consonant (coda 1) may form 20 combinations with the nucleus out of possible 24 combinations. Among all the 24 consonant phonemes of English, the phonemes [h, w, j, and r] cannot be combined with any type of nucleus[10.84-86].
The analysis made in the nature of existing combinations of two consonants in English words has found only 13 consonant phonemes which can be combined with the nucleus through 20 consonants.
The number of consonants which can be found in the final position of the codas with three consonants (coda 3) is 4, i.e. the consonants [t,s,z and θ].
In codas with four consonants in the final position (coda 4) the only consonant phoneme [ s] is found.
TABLE N: 2