di quando in quando significa in inglese

at times▼(on occasion, sometimes)
preposition
[UK: ət ˈtaɪmz] [US: ət ˈtaɪmz]

from time to time▼(occasionally)
preposition
[UK: frəm ˈtaɪm tuː ˈtaɪm] [US: frəm ˈtaɪm ˈtuː ˈtaɪm]