) present perfect: I have shown (not showed) past perfect: I had shown future perfect: I shall have shown
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Anonymousdfuture: I shall show ... future perfect: I shall have shown'Will' is far more commonly used to express futurity than 'shall.' 'Shall' is uncommon in BrE these days and, as far as I know, is not used in AmE at all.
Anonymouspresent perfect: I have shown (not showed)Many dictionaries and usage guides accept both shown and showed. Being an outsider, I cannot say how common showed is.
Cup cakeThere is an -ed on the end.The three forms are as shown below:
CalifJimEven so, past participle 'showed' is comparatively rare,... as this