1) All day every day 2) Ceaselessly 3) Constantly 4) Day after day 5) Evermore 6) Forever 7) Frequently 8) Night afternight 9) On and on 10) Onend 11) Repeatedly 12) Yearafteryear 1) All the time 2) Always 3) Continuously 4) Eternally 5) Everlastingly 6) Forever 7) Frequently 8) Habitually 9) Incessantly 10) Persistently 11) Regularly 12) Relentlessly 13) Unceasingly 14) Unendingly 15) Very often 
• (adv.) In regular or repeated succession; very often. • (adv.) Without cessation; unceasingly; continuously; as, the current flows continually.
Con·tin'u·al·ly adverb 1. Without cessation; unceasingly; continuously; as, the current flows continually . « Why do not all animals continually increase in bigness? Bentley. » 2. In regular or repeated succession; very often. « Thou shalt...
[adv] - seemingly without interruption
very often; at regular or frequent intervals; habitually. · without cessation or intermission; unceasingly; always.