Fòram na Gàidhlig

Thanks so much for that. I have a further question if that is ok. I understand that Cha dìochuimhnich mi a-chaoidh means 'i will never forget him'......i think i understand that dìochuimhnich means forget and that chaoidh means never. Which part refers to the masculine subject? So how would I change...

Could someone please let me know how I would say:

'I will never forget'

Many thanks