Sentences like these are sometimes said to illustrate contra-factivity, that is, the nonrealization of the proposition (I + go + past) in the example. Similarly contra-factive is the traditionally "unreal" protasis of certain conditional sentences, e.g. 6 -F E law kunti ruht imbaarih (kunti sufti °ali)
"If! had gone (i.e:1 did not go) yesterday (I would have seen Ali)". Such contra-factive conditions, like questions of the type 7 yatara saafIr?