The basic future tense in Hindi textbooks is described as verb stem + ending, where the ending is one of uuNgaa, uuNgii, oge, eNge, eNgii, ega, egii. example: i am going to go. - maiN jaauuNgaa(gii) We have another future formation for an action that is about to take place formed by oblique verb infinitive + waalaa/waalii example: he is about to go - vah jaanevaalaa hai We have yet another formation to describe actions one is going to do immediately formed by verb stem + taa/tii/tee example: i am going to go (right now) - maiN jaataa(ii) huuN And finally, we have the usage of the present continuous as referring to the future. I am going to go tomorrow - kal maiN jaa rahaa(ii) huuN The question is: In the situation where something is about to happen can all of these forms be used? Particularly, can one use the egaa, waalaa, and taa forms to say sentences like: The show is going to begin. (in 30 seconds) I will open the door. (right now) What really is the difference, if any, between the first 3?