I read that nonfinite verb form end in -ed,-ing or starts with to and another definition where nonfinite verb form show no tense.
But on the other hand, I've read there are past and present progressive verb forms. They start with is/are/am and end in -ing for present tense. In past form they start with was/were and end in -ing.
Similar thing for present/past perfect form except it uses different starting words and ends in -ed.
Are these verb phrase which have forms in the past and present, nonfinite?