1. MODALS OF OBLIGATION MUST, HAVE TO, SHOULD, OUGHT TO 2. OBLIGATION or STRONG RECOMMENDATION We use must (do) and have to (do) to say that it is necessary to do something.e.g.…
1. MODALS OF OBLIGATION MUST, HAVE TO, SHOULD, OUGHT TO 2. OBLIGATION or STRONG RECOMMENDATION We use must (do) and have to (do) to say that it is necessary to do something.e.g.…