The future perfect is a verb form or construction used to describe an event that is expected or planned to happen before a time of reference in the future, such as will have finished in the English sentence "I will have finished by tomorrow." It is a grammatical combination of the future tense, or other marking of future time, and the perfect, a grammatical aspect that views an event as prior and completed. English In English, the future perfect construction consists of a future construction such as the auxiliary verb will (or shall) or the going-to future and the perfect infinitive of the main verb (which consists of the infinitive of the auxiliary verb have and the past participle of the main verb). This parallels the construction of the "normal" future verb forms combining the same first components with the plain infinitive (e.g. She will fall / She is going to fall). For example: She will have fallen asleep by the time we get home. I shall have gone by then. Will you have finished when I get back? The auxiliary is commonly contracted to ll in speech and often in writing, and the first part of the perfect infinitive is commonly contracted to ve in speech: see English auxiliaries and contractions. The negative form is made with will not or shall not; these have their own contractions won't and shan't. Some examples: Ill have made the dinner by 6 PM. He won't have done (or will not have done) it by this evening. Won't you have finished by Thursday? (or Will you not have finished by Thursday?) Most commonly the future perfect is used with a time marker that indicates by when (i.e., prior to what point in time) the event is to occur, as in the previous examples. However, it is also possible for it to be accompanied by a marker of the retrospective time of occurrence, as in "I will have done it on the previous Tuesday". This is in contrast to the present perfect, which is not normally used with a marker of past time: one would not say "I have done it last Tuesday", since the inclusion of the past time marker last Tuesday would entail the use of the simple past rather than the present perfect. The English future perfect places the action relative only to the absolute future reference point, without specifying the