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Modal Verbs COULD - PDF
Modal Verbs: Can or Could? Modal Auxiliary Verbs - Can and Could
Modal verbs Using Modal Auxiliary Verbs


Part - 2
Contracting modal verbs could have Modals are those helping verbs
Modals: can, may and will verbs MODAL AUXILIARY VERBS
Modal Verbs - Structure and Use Modal Verbs in English
Functions of The Modal Verbs English Modal Verbs Table
Modal Auxiliaries Using Modal Auxiliary Verbs
MODAL AUXILIARY VERBS MODAL VERBS POSSIBILITY, CERTAINTY
Modals - Advice, Necessity, Requests, Suggestions Modal Verbs of Ability and Permission Exercise

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