da sempre significa in inglese

lifelong▼(extending for the entire duration of life)
adjective
[UK: ˈlaɪ.flɒŋ] [US: ˈlaɪ.ˈflɒŋ]

all along▼(duration)
adverb
[UK: ɔːl ə.ˈlɒŋ] [US: ɔːl ə.ˈlɔːŋ]