I can stiffen you can stiffen he can stiffen we can stiffen you can stiffen they can stiffen
Form mit V-ing
I can be stiffening you can be stiffening he can be stiffening we can be stiffening you can be stiffening they can be stiffening
Perfekt
I can have stiffened you can have stiffened he can have stiffened we can have stiffened you can have stiffened they can have stiffened
Perfekt mit V-ing
I can have been stiffening you can have been stiffening he can have been stiffening we can have been stiffening you can have been stiffening they can have been stiffening
Negation
Einfache Form
I cannot stiffen you cannot stiffen he cannot stiffen we cannot stiffen you cannot stiffen they cannot stiffen
Form mit V-ing
I cannot be stiffening you cannot be stiffening he cannot be stiffening we cannot be stiffening you cannot be stiffening they cannot be stiffening
Perfekt
I cannot have stiffened you cannot have stiffened he cannot have stiffened we cannot have stiffened you cannot have stiffened they cannot have stiffened
Perfekt mit V-ing
I cannot have been stiffening you cannot have been stiffening he cannot have been stiffening we cannot have been stiffening you cannot have been stiffening they cannot have been stiffening
Fragende Form
Einfache Form
can I stiffen? can you stiffen? can he stiffen? can we stiffen? can you stiffen? can they stiffen?
Form mit V-ing
can I be stiffening? can you be stiffening? can he be stiffening? can we be stiffening? can you be stiffening? can they be stiffening?
Perfekt
can I have stiffened? can you have stiffened? can he have stiffened? can we have stiffened? can you have stiffened? can they have stiffened?
Perfekt mit V-ing
can I have been stiffening? can you have been stiffening? can he have been stiffening? can we have been stiffening? can you have been stiffening? can they have been stiffening?
Fragende Negation Form
Einfache Form
can I not stiffen? can you not stiffen? can he not stiffen? can we not stiffen? can you not stiffen? can they not stiffen?
Form mit V-ing
can I not be stiffening? can you not be stiffening? can he not be stiffening? can we not be stiffening? can you not be stiffening? can they not be stiffening?
Perfekt
can I not have stiffened? can you not have stiffened? can he not have stiffened? can we not have stiffened? can you not have stiffened? can they not have stiffened?
Perfekt mit V-ing
can I not have been stiffening? can you not have been stiffening? can he not have been stiffening? can we not have been stiffening? can you not have been stiffening? can they not have been stiffening?