English verb conjugation
CAN SPADE

Regular verb: spade - spaded - spaded

Affirmation

Simple form	V-ing form
I can spade you can spade he can spade we can spade you can spade they can spade	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	V-ing 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	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	V-ing form
I cannot spade you cannot spade he cannot spade we cannot spade you cannot spade they cannot spade	I cannot be spading you cannot be spading he cannot be spading we cannot be spading you cannot be spading they cannot be spading
Perfect	V-ing perfect
I cannot have spaded you cannot have spaded he cannot have spaded we cannot have spaded you cannot have spaded they cannot have spaded	I cannot have been spading you cannot have been spading he cannot have been spading we cannot have been spading you cannot have been spading they cannot have been spading

Interrogative form

Simple form	V-ing form
can I spade? can you spade? can he spade? can we spade? can you spade? can they spade?	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	V-ing 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?	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	V-ing form
can I not spade? can you not spade? can he not spade? can we not spade? can you not spade? can they not spade?	can I not be spading? can you not be spading? can he not be spading? can we not be spading? can you not be spading? can they not be spading?
Perfect	V-ing perfect
can I not have spaded? can you not have spaded? can he not have spaded? can we not have spaded? can you not have spaded? can they not have spaded?	can I not have been spading? can you not have been spading? can he not have been spading? can we not have been spading? can you not have been spading? can they not have been spading?