Spoken English with concentrate Telugulo

I concentrate 
(nenu dhrustipettadathaanu)

I do not concentrate
(nenu dhrustipettanu)

I will concentrate
(nenu dhrustipedathaanu)

I will not concentrate
(nenu dhrustipettanu)


I concentrated
(nenu dhrustipettaanu)

I did not concentrate
(nenu dhrustipettaledhu)

I have concentrated
(nenu dhrustipettaanu)

I have not concentrated
(nenu dhrustipattaledhu)


I am concentrating
(nenu dhrustipeduthunnaanu)


I am not concentrating
(nenu dhristipedathalenu)