He, she and it - past, present and future in Tamil
he - avan/avar
he was walking. avan nadandaan/avar nadandaar(respectful)
he is walking. avan nadakkiraan
he will walk. avan nadappaan
she was walking. avaL nadandaaL
she is walking. avaL nadakkiraaL
she will walk. avaL nadappaaL
adu nadandadu - It happened
adu nadakkiradu - It is happening
adu nadakkum - It will happen