Romanian (Bucharest). Aspect: Opposition of forms inside the paradigm, 1

tu dormeai/tu ai dormit
tu
you
dormeai
sleep.IPFV.2SG
tu
you
ai
AUX:PRF.PST.2SG
dormit
sleep.PTCP
you were sleeping (imperfective)/you have slept (perfect)
Type: Constructed by native speaker linguist
Source: Pană Dindelegan (ed.) 2013: 55-63