закономерность означает в английский

legitimacy▼(quality of being legitimate or valid; validity)
noun
[UK: lɪ.ˈdʒɪ.tɪ.mə.si] [US: lə.ˈdʒɪ.tə.mə.si]

pattern [patterns]▼(intelligible arrangement which has a mathematical, geometric, statistical etc. relationship)
noun
[UK: ˈpæt.n̩] [US: ˈpæ.tərn]