Picture a small child saying: "Can’t, shan’t, won’t!" They are using modal verbs to show their feelings and attitude to something. Maybe they are refusing to go to bed or eat their peas. Modal verbs ...

Modal verbs, which express a likelihood, ability, permission, request, order etc., usually help main verbs to state the future. It is the reason they are categorised as auxiliary verbs in the context.

Mea culpa, mea culpa, mea minima culpa: Michael Bulley (Letters, 10 May) is right to correct me – Latin does have the modal verbs he names, which cover possibility (possum), permission (licet) and ...