de costumbre znamená v Angličtina

normally▼(under normal conditions or circumstances; usually; most of the time)
adverb
[UK: ˈnɔː.mə.li] [US: ˈnɔːr.mə.li]

as usual▼(as is usually the case)
adverb
[UK: əz ˈjuː.ʒʊəl] [US: ˈæz ˈjuː.ʒə.wəl]