HAVE TO is similar to MUST, RIGHT, DON'T HAVE TO is similar to MUSTN'T., WRONG, SHOULD is similar to OUGHT TO, RIGHT, DON'T NEED TO is similar to DON'T HAVE TO, RIGHT, Past form for MUST is HAD TO, RIGHT, Past form for MUSTN'T is DIDN'T HAVE TO, WRONG

MODALS. Right or wrong?

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