Ga/Ni Conversion Re-examined

(1) a. Taroo qa_ eego ga wakaru. b. Taroo ni_ eego ga wakaru. 'Taroo understands English.' (2) a. Watasi ga_ eego ga dekiru. b. Watasi ni_ eego ga dekiru. 'I can speak English.' (3) a. Taroo qa_ eego ga hanas-e-ru. b. Taroo ni_ eego ga hanas-e-ru. 'Taroo can speak English.' (4) a. Watasi ga sono eega ga omosiroi. b. Watasi ni sono eega ga omosiroi. 'That movie is interesting to me.' (5) a. Taroo ga_ eego ga nigate-da. b. Taroo ni eego ga nigate-da. 'Taroo is not good at English.'