I can galumph you can galumph he can galumph we can galumph you can galumph they can galumph
V-ing form
I can be galumphing you can be galumphing he can be galumphing we can be galumphing you can be galumphing they can be galumphing
Perfect
I can have galumphed you can have galumphed he can have galumphed we can have galumphed you can have galumphed they can have galumphed
V-ing perfect
I can have been galumphing you can have been galumphing he can have been galumphing we can have been galumphing you can have been galumphing they can have been galumphing
Negation
Simple form
I cannot galumph you cannot galumph he cannot galumph we cannot galumph you cannot galumph they cannot galumph
V-ing form
I cannot be galumphing you cannot be galumphing he cannot be galumphing we cannot be galumphing you cannot be galumphing they cannot be galumphing
Perfect
I cannot have galumphed you cannot have galumphed he cannot have galumphed we cannot have galumphed you cannot have galumphed they cannot have galumphed
V-ing perfect
I cannot have been galumphing you cannot have been galumphing he cannot have been galumphing we cannot have been galumphing you cannot have been galumphing they cannot have been galumphing
Interrogative form
Simple form
can I galumph? can you galumph? can he galumph? can we galumph? can you galumph? can they galumph?
V-ing form
can I be galumphing? can you be galumphing? can he be galumphing? can we be galumphing? can you be galumphing? can they be galumphing?
Perfect
can I have galumphed? can you have galumphed? can he have galumphed? can we have galumphed? can you have galumphed? can they have galumphed?
V-ing perfect
can I have been galumphing? can you have been galumphing? can he have been galumphing? can we have been galumphing? can you have been galumphing? can they have been galumphing?
Interro-negative form
Simple form
can I not galumph? can you not galumph? can he not galumph? can we not galumph? can you not galumph? can they not galumph?
V-ing form
can I not be galumphing? can you not be galumphing? can he not be galumphing? can we not be galumphing? can you not be galumphing? can they not be galumphing?
Perfect
can I not have galumphed? can you not have galumphed? can he not have galumphed? can we not have galumphed? can you not have galumphed? can they not have galumphed?
V-ing perfect
can I not have been galumphing? can you not have been galumphing? can he not have been galumphing? can we not have been galumphing? can you not have been galumphing? can they not have been galumphing?