ж у, mean-meant, sweep-swept пи с ать-пи ш у Examples in the English and Russian languages show that at the result of adding tense forming affixal morphemes in the the compared languages’ verbs change of phonemes occurs inside the root. The separation of the added affixal morphemes from the roots of verbs makes the latter loose their independence. In the English language tense formation may occur on the phonological level of the language by interchange of phonemes inside the root of the verb which has also been preserved from the Ancient English: write begin bend fall This typological peculiarity of tense formation does not exist in the Russian and Uzbek languages, by this way only the new words can be formed: siz-sez bir-ber kuz-ko’z sen-son Tense formation in English can be expressed pure analytically , that is by the combination of the notional verb with the auxiliary verb , where neither the notional nor the function verb changes its sound structure: I go< I shall go We go< we shall go You go< you will go They go< they will go The rest of tense forms are expressed by the combination of one or more function verbs with the notional verb where the notional and function verbs are subjected to the complete or partly phonemic changes. Analysis of the factual English material shows that the lexical meanings of the auxiliary verbs be, have, shall, will, should, would in combination with the notional verbs become so abstract and they are so alloyed in the notional verb they are combined with ,that we can consider them to be the analytical forms expressing tense forms( and the passive voice as we have seen it above). In combination with the notional verbs these auxiliary verbs change their phonemic structure expressing person,number and tense of the verb they are combined with. Notional verbs also change their phonemic structure in combination with these auxiliary verbs. This peculiarity is the typological characteristic of the synthetical-inflected languages:
I have spoken< I had spoken He has spoken< He had spoken I am speaking Differing from link verbs which are used for the formation of the compound nominal predicate ( I am a teacher, the wall is white: auxiliary verb to be is used in the function of the link verb) auxiliary verbs used in the function of the analytical forms are equal to the synthetic forms expressing grammatical meanings. Link verbs being combined wih the nominal part of the compound nominal predicate( predicative) perform syntactic function, auxiliary verbs used in the function of the analytical forms being combined with the notional verbs express the categories of tense , voice and mood of the verb. In the structure of the Uzbek language also analytical formation of tense forms are observed: Bu yozuvchi asarlarini yoshligimda o’qir edim; Siz kelganingizda bu asarni o’qimoqda edim (Past Continuous- o’tgan zamon davom formasi); Bu asarni yoshligimda o’qigan edim (Past Perfect- uzoq o’tgan zamon formasi). Analysis of the analytical expression of tense forms in the English and Uzbek languages shows that in the Uzbek language by the combination of the auxiliary verb edi/edim with the notional verb the latter does not change its sound structure receiving affixal morphemes expressing person, number etc. by agglutination. In Russian also the analytical formation of tense forms is observed: Я эту книгу буду читать завтра: Future Tense in the imperfective aspect .The given example in Russian shows that the auxiliary verb быть changes its sound structure at the result of its combination with the notional verb: