non-finite verb

non-finite verb (ikke-finitt, infinitt verb): a verb which is not marked for tense or modality. The non-finite verb forms are the infinitive, the past participle and the ing-participle. E.g. (to) write, written, writing. Non-finite forms can combine with each other in non-finite verb phrases, e.g. having written, having been written, being writing. Non-finite forms can also combine with finite ones in finite verb phrases (in which case the finite verb comes first), e.g. has been writing, (he) had been writing, (the book) will have been written.