Wetheyhesheitheshould, we'rejustgoingtousehadsoitdoesnotmatterthesubjectanysubjectyouwantYeswe'reonlyalwaysgoingtousehadsohehadshehad I hadthat's easythenegative.
We they he she it he should, we're just going to use had so it doesn't matter the subject any subject you want Yes we're only always going to use had so he had she had I had that's easy the negative.
Nowthisiswhere a lotoflearnersofenglishofthiscrazylanguagegetconfusedbecausewhenwetalkaboutthenegativewehavetouseagaintheauxiliaryverb, buttheauxiliaryverbisgoingtobeinthepastinthenegative.