Completar Frases Past Modals.Versión en línea Modal verbs in the past, also known as modal preterite or modal past, are used to express modalities like possibility, necessity, obligation, or permission in the past. In English, the modal verbs "could," "might," "should," and "would" are typically used to convey these modal meanings in the past tense. *Complete the following sentences by selecting the right choices. por Leticia Moreno 1 has have would could might should She studied harder for the exam . 2 has should would could might have We left earlier to avoid the traffic . 3 should could has would have might He forgotten to lock the door before leaving . 4 should have has might would could They finished the project on time if they had worked together . 5 might could has have would should I helped you with your homework if you had asked . 6 has have might could would should She listened to her parents' advice before making that decision .