SHALL/ SHOULD / COULD/ CAN / MAY / MUST/ MIGHT/ HAD BETTER/WOULD RATHER AND WHY NOT

1. - VERB FORM LI THUYET BAI TAP DAP AN
VERB FORM LI THUYET BAI TAP DAP AN

1. Sau modal verbs: Will. Shall/ should / could/ can / may / must/ might/ had better/would rather

and why not...?