Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I should fall. stumbel you should fall. stumbel he should fall. stumbel we should fall. stumbel you should fall. stumbel they should fall. stumbel
V-ing form
I should be fall. stumbeling you should be fall. stumbeling he should be fall. stumbeling we should be fall. stumbeling you should be fall. stumbeling they should be fall. stumbeling
Perfect
I should have fall. stumbeled you should have fall. stumbeled he should have fall. stumbeled we should have fall. stumbeled you should have fall. stumbeled they should have fall. stumbeled
V-ing perfect
I should have been fall. stumbeling you should have been fall. stumbeling he should have been fall. stumbeling we should have been fall. stumbeling you should have been fall. stumbeling they should have been fall. stumbeling
Negation
Simple form
I should not fall. stumbel you should not fall. stumbel he should not fall. stumbel we should not fall. stumbel you should not fall. stumbel they should not fall. stumbel
V-ing form
I should not be fall. stumbeling you should not be fall. stumbeling he should not be fall. stumbeling we should not be fall. stumbeling you should not be fall. stumbeling they should not be fall. stumbeling
Perfect
I should not have fall. stumbeled you should not have fall. stumbeled he should not have fall. stumbeled we should not have fall. stumbeled you should not have fall. stumbeled they should not have fall. stumbeled
V-ing perfect
I should not have been fall. stumbeling you should not have been fall. stumbeling he should not have been fall. stumbeling we should not have been fall. stumbeling you should not have been fall. stumbeling they should not have been fall. stumbeling
Interrogative form
Simple form
should I fall. stumbel? should you fall. stumbel? should he fall. stumbel? should we fall. stumbel? should you fall. stumbel? should they fall. stumbel?
V-ing form
should I be fall. stumbeling? should you be fall. stumbeling? should he be fall. stumbeling? should we be fall. stumbeling? should you be fall. stumbeling? should they be fall. stumbeling?
Perfect
should I have fall. stumbeled? should you have fall. stumbeled? should he have fall. stumbeled? should we have fall. stumbeled? should you have fall. stumbeled? should they have fall. stumbeled?
V-ing perfect
should I have been fall. stumbeling? should you have been fall. stumbeling? should he have been fall. stumbeling? should we have been fall. stumbeling? should you have been fall. stumbeling? should they have been fall. stumbeling?
Interro-negative form
Simple form
should I not fall. stumbel? should you not fall. stumbel? should he not fall. stumbel? should we not fall. stumbel? should you not fall. stumbel? should they not fall. stumbel?
V-ing form
should I not be fall. stumbeling? should you not be fall. stumbeling? should he not be fall. stumbeling? should we not be fall. stumbeling? should you not be fall. stumbeling? should they not be fall. stumbeling?
Perfect
should I not have fall. stumbeled? should you not have fall. stumbeled? should he not have fall. stumbeled? should we not have fall. stumbeled? should you not have fall. stumbeled? should they not have fall. stumbeled?
V-ing perfect
should I not have been fall. stumbeling? should you not have been fall. stumbeling? should he not have been fall. stumbeling? should we not have been fall. stumbeling? should you not have been fall. stumbeling? should they not have been fall. stumbeling?