I can spade you can spade he can spade we can spade you can spade they can spade
V-ing form
I can be spading you can be spading he can be spading we can be spading you can be spading they can be spading
Perfect
I can have spaded you can have spaded he can have spaded we can have spaded you can have spaded they can have spaded
V-ing perfect
I can have been spading you can have been spading he can have been spading we can have been spading you can have been spading they can have been spading
Negation
Simple form
I can't spade you can't spade he can't spade we can't spade you can't spade they can't spade
V-ing form
I can't be spading you can't be spading he can't be spading we can't be spading you can't be spading they can't be spading
Perfect
I can't have spaded you can't have spaded he can't have spaded we can't have spaded you can't have spaded they can't have spaded
V-ing perfect
I can't have been spading you can't have been spading he can't have been spading we can't have been spading you can't have been spading they can't have been spading
Interrogative form
Simple form
can I spade? can you spade? can he spade? can we spade? can you spade? can they spade?
V-ing form
can I be spading? can you be spading? can he be spading? can we be spading? can you be spading? can they be spading?
Perfect
can I have spaded? can you have spaded? can he have spaded? can we have spaded? can you have spaded? can they have spaded?
V-ing perfect
can I have been spading? can you have been spading? can he have been spading? can we have been spading? can you have been spading? can they have been spading?
Interro-negative form
Simple form
can't I spade? can't you spade? can't he spade? can't we spade? can't you spade? can't they spade?
V-ing form
can't I be spading? can't you be spading? can't he be spading? can't we be spading? can't you be spading? can't they be spading?
Perfect
can't I have spaded? can't you have spaded? can't he have spaded? can't we have spaded? can't you have spaded? can't they have spaded?
V-ing perfect
can't I have been spading? can't you have been spading? can't he have been spading? can't we have been spading? can't you have been spading? can't they have been spading?