Are these sentences correct? : ceannaíonn / cheannaíonn / gceannaíonn Sílim go gceannaíonn sé gránach ann. I think that he buys cereal there. Sílim nach gceannaíonn sí bláthanna dá máthair. I think that she doesn't buy her mother flowers. Sin an fear a cheannaíonn caife ag Rao's Coffee. That is the man who buys coffee at Rao's Coffee. Cén fáth nach gceannaíonn sé cupán caife duit? Why doesn't he buy you a cup of coffee? Cá bhfuil an cailín a gceannaíonn siad piorraí di? Where is the girl for whom they buy pears? Seo an bhean nach gceannaíonn a mac arán ansin. This is the woman whose son doesn't buy bread there.