Completar Frases Verbos modalesVersión en línea Juega por Karen Coronel 1 English auxiliary permission because necessary there ability Spanish possibility obligation verb modality verb A modal is an verb ( that is , dependent on another ) that is used to indicate what is called " " : , possibility , or . In English , these verbs are the tenses are not enough to express ideas as uncertainty or : is no tense like the subjunctive , for example .