How do modal verbs combine with 'have been' + '-ing' to show ongoing completed actions?

Both can and could are modal auxiliary verbs that express ability, permission, request, offer, or opportunity. Mar 4, 2022 ... The first involves the relative weight given to individual modal verbs. Because must, may, could, should and would are the five modal verbs that ... Apr 7, 2013 ... This research reveals the role that the speaker's intentional, selective use of modal verbs plays in the articulation of directive speech acts. Oct 20, 2021 ... These modals are usually used in the first person singular when you ask for permission or authorization to do something. The response is ... Modal verbs do not take any endings like -s, -ed or -ing · It might rain tonight. · The negative form of may is may not + base form. · When may is used in a ... In academic writing, writers may need to be cautious in the way they present ideas (this is known as hedging). One way of expressing uncertainty is to use the ... In academic writing, modal verbs are most frequently used to indicate logical possibility and least frequently used to indicate permission. Eight modal verbs ... Modal phrases (or semi-modals) are used to express the same things as modals, but are a combination of auxiliary verbs and the preposition to. The modals and ... A modal verb is a small word that is used in conjunction with another verb to bring more meaning to a sentence. In other words, it “modulates” the main verb, ... Modal verbs express actions based on necessity, obligation, possibility, ability, or intent. That is why they are usually combined with other verbs.