English verb conjugation
CAN SPALL

Regular verb: spall - spalled - spalled

Affirmation

Simple form	V-ing form
I can spall you can spall he can spall we can spall you can spall they can spall	I can be spalling you can be spalling he can be spalling we can be spalling you can be spalling they can be spalling
Perfect	V-ing perfect
I can have spalled you can have spalled he can have spalled we can have spalled you can have spalled they can have spalled	I can have been spalling you can have been spalling he can have been spalling we can have been spalling you can have been spalling they can have been spalling

Negation

Simple form	V-ing form
I can't spall you can't spall he can't spall we can't spall you can't spall they can't spall	I can't be spalling you can't be spalling he can't be spalling we can't be spalling you can't be spalling they can't be spalling
Perfect	V-ing perfect
I can't have spalled you can't have spalled he can't have spalled we can't have spalled you can't have spalled they can't have spalled	I can't have been spalling you can't have been spalling he can't have been spalling we can't have been spalling you can't have been spalling they can't have been spalling

Interrogative form

Simple form	V-ing form
can I spall? can you spall? can he spall? can we spall? can you spall? can they spall?	can I be spalling? can you be spalling? can he be spalling? can we be spalling? can you be spalling? can they be spalling?
Perfect	V-ing perfect
can I have spalled? can you have spalled? can he have spalled? can we have spalled? can you have spalled? can they have spalled?	can I have been spalling? can you have been spalling? can he have been spalling? can we have been spalling? can you have been spalling? can they have been spalling?

Interro-negative form

Simple form	V-ing form
can't I spall? can't you spall? can't he spall? can't we spall? can't you spall? can't they spall?	can't I be spalling? can't you be spalling? can't he be spalling? can't we be spalling? can't you be spalling? can't they be spalling?
Perfect	V-ing perfect
can't I have spalled? can't you have spalled? can't he have spalled? can't we have spalled? can't you have spalled? can't they have spalled?	can't I have been spalling? can't you have been spalling? can't he have been spalling? can't we have been spalling? can't you have been spalling? can't they have been spalling?