Future Perfect

Future Perfect

(Shall/will + have + III form of the Verb)

        The Future Perfect Tense expresses an action which is expected to be completed by a certain time in the Future:

        She will have covered half of her journey by Monday next.

            I shall have revised my lesson by 9 P.M. tomorrow.

        The plane will have landed by the time you reach the airport.

(ii)        The Future Perfect Tense sometimes expresses the speaker’s belief that some­thing has taken place. In such sentences it does not express the Future:

            “In the newspaper you will have read about the railway accident that took place today”, said my father.

            “You will have discussed the plans how to celebrate the function”, said my mother.

(iii)       It is also used for an action which at a given future time will be in the past:

            In two years’ time (i.e., two years from now) I shall have taken my degree. When we reach Bangalore, we shall have completed the major part of our round tour to South India.

Note:    In a complete sentence we use ‘shall/will’ only in the Principal Clause.

                        I will go to play when I finish my work.

                                                Or

                        I will go to play when I have finished my work.