現在進行式 + ed???

This is being repaired. 係現在進行式,點解 repaired, 因為這句子是Passive Voice.

Someone is repairing it. + ing Active Voice
It is being repaired + being + p.participle Passive oice.


or

I am repairing it. Active voice
It is being repaired by me Passive voice

這是passive voice 所以進行式 repair + ed