Memory Modals of obligation/necessity (D)Versión en línea Let's work on some modals! (should, can, need, have to, must) por Tami Sotelo Prohibition, strong. Necessity. Strong. Optional, not necessary but not wrong to do or have. Obligation, not as strong. Optional, absolutely no obligation or phohibition of any type. Suggestion. Not a prohibition, but it is better not to do it. Suggestion. Not an obligation, but it is best to do as adviced. Obligation, strong.
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