frequently: P. and V. πολλάκις, θάμα (Plato), Ar. and V. πολλά, P. συχνόν.
continuously: P. συνεχῶς, ἐνδελεχῶς, V. διανεκῶς (Aesch., Agamemnon 319); see continually.
eternally: P. εἰς πάντα χρόνον, V. εἰς τὸ πᾶν χρόνου; see eternally.