A closer look revealed inconsistencies in Grimm's law in act 1. The Danish scientist Karl Verner, after studying these inconsistencies, was able to explain these inconsistencies. This explanation was called Verner's law. It consists in the fact that changes in 1 act of the first movement of vowels occur if the stress in the word was on the vowel preceding the given consonant. Thus, in the Greek word "pater", the voiceless stop consonant [t] is preceded by an unstressed root vowel. Under such conditions, the voiceless slit sound [£], which developed from it in the Germanic languages by the first movement of consonants, became a voiced slit sound [5] and as a result turned into a voiced stop sound [d]. The voicing process according to Verner's law is spread in the past tense forms of verbs in the English language of the ancient period. The action of Verner's law is most clearly manifested when comparing single-root pairs of words that differ from each other in the place of stress
