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