Permission We use may or can when we ask for or give permission. We use may not or can’t to refuse permission. May is more formal. A: May / Can we leave? B: No, you may not / can’t. We use be allowed to to talk about rules made by someone else. The teacher... Continue Reading →
Modal Verbs
Can / can’t and could / couldn’t for factual (im)possibility We use can / can’t to say what is generally possible / impossible in fact. It can get very hot at this time of year. Plants can’t survive without sunlight. We use could / couldn’t to say what was / wasn’t generally possible in fact... Continue Reading →
Ramrowriter 