English verb conjugation
COULD SPURN

Regular verb: spurn - spurned - spurned

Affirmation

Simple form	V-ing form
I could spurn you could spurn he could spurn we could spurn you could spurn they could spurn	I could be spurning you could be spurning he could be spurning we could be spurning you could be spurning they could be spurning
Perfect	V-ing perfect
I could have spurned you could have spurned he could have spurned we could have spurned you could have spurned they could have spurned	I could have been spurning you could have been spurning he could have been spurning we could have been spurning you could have been spurning they could have been spurning

Negation

Simple form	V-ing form
I couldn't spurn you couldn't spurn he couldn't spurn we couldn't spurn you couldn't spurn they couldn't spurn	I couldn't be spurning you couldn't be spurning he couldn't be spurning we couldn't be spurning you couldn't be spurning they couldn't be spurning
Perfect	V-ing perfect
I couldn't have spurned you couldn't have spurned he couldn't have spurned we couldn't have spurned you couldn't have spurned they couldn't have spurned	I couldn't have been spurning you couldn't have been spurning he couldn't have been spurning we couldn't have been spurning you couldn't have been spurning they couldn't have been spurning

Interrogative form

Simple form	V-ing form
could I spurn? could you spurn? could he spurn? could we spurn? could you spurn? could they spurn?	could I be spurning? could you be spurning? could he be spurning? could we be spurning? could you be spurning? could they be spurning?
Perfect	V-ing perfect
could I have spurned? could you have spurned? could he have spurned? could we have spurned? could you have spurned? could they have spurned?	could I have been spurning? could you have been spurning? could he have been spurning? could we have been spurning? could you have been spurning? could they have been spurning?

Interro-negative form

Simple form	V-ing form
couldn't I spurn? couldn't you spurn? couldn't he spurn? couldn't we spurn? couldn't you spurn? couldn't they spurn?	couldn't I be spurning? couldn't you be spurning? couldn't he be spurning? couldn't we be spurning? couldn't you be spurning? couldn't they be spurning?
Perfect	V-ing perfect
couldn't I have spurned? couldn't you have spurned? couldn't he have spurned? couldn't we have spurned? couldn't you have spurned? couldn't they have spurned?	couldn't I have been spurning? couldn't you have been spurning? couldn't he have been spurning? couldn't we have been spurning? couldn't you have been spurning? couldn't they have been spurning?