SpeakEnglishModals в Android Market

SpeakEnglishModals (v. EnglishVer) Разработано Bill Ray

17000 modal sentences using 620 different common English regular verbs - AND all the tenses.

could, should, would, must and can.

Only a computer could do this and books fail to teach it.

Native speakers understand all these, they are not academic cases. Powerful App.