--------------------------------- --------------------------------- -------------------------------- such as can, could, be able to, know how to, etc. source: المقررات المفتوحة 20140129 can = (be) able to source: LearnAmericanEnglishOnline 2008-05-20 (be) able to -- past tense 2009-03-24 can and can't 2008-06-07 |
II. The Fundamental Components: Verbs, Nouns, and Pronouns > A. Verbs > 4. other verb types and related aspects > d. modal auxiliaries (modals) >