English verb conjugation
CAN SPADE

Regular verb: spade - spaded - spaded

Affirmation

Simple form	V-ing form
I can spade you can spade she can spade we can spade you can spade they can spade	I can be spading you can be spading she 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 she 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 she 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 can't spade you can't spade she can't spade we can't spade you can't spade they can't spade	I can't be spading you can't be spading she can't be spading we can't be spading you can't be spading they can't be spading
Perfect	V-ing perfect
I can't have spaded you can't have spaded she can't have spaded we can't have spaded you can't have spaded they can't have spaded	I can't have been spading you can't have been spading she 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	V-ing form
can I spade? can you spade? can she spade? can we spade? can you spade? can they spade?	can I be spading? can you be spading? can she 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 she 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 she 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't I spade? can't you spade? can't she spade? can't we spade? can't you spade? can't they spade?	can't I be spading? can't you be spading? can't she be spading? can't we be spading? can't you be spading? can't they be spading?
Perfect	V-ing perfect
can't I have spaded? can't you have spaded? can't she have spaded? can't we have spaded? can't you have spaded? can't they have spaded?	can't I have been spading? can't you have been spading? can't she have been spading? can't we have been spading? can't you have been spading? can't they have been spading?