Type B (when the vowels a, o, u are in an unstressed position). Subjecting to this type of reduction these vowels are pronounced [ə] po 'lite [pə'laɪt] 'lyrical ['lɪrɪkəl ]
quantitative. It is shortening of the length of a long vowel sound. me [ mi˙] he [hi˙] complete. It is the disappearance of a vowel sound. It occurs when an unstressed vowel occupies the position after the stressed one and it is between a noiseless sound and a sonorant one. 'cotton ['ktn] 'lesson ['lesn]
In this case the sonorant forms a syllable. Besides the mentioned above types of reduction, there are special cases of reduction which include all the vowels. They are: the vowel a if it precedes the combinations “-ate”, “-ade” is subjected to the reduction Type A in adjectives and nouns and is not reduced in verbs.