English verb conjugation
COULD FILCH

Regular verb: filch - filched - filched

Affirmation

Simple form	V-ing form
I could filch you could filch he could filch we could filch you could filch they could filch	I could be filching you could be filching he could be filching we could be filching you could be filching they could be filching
Perfect	V-ing perfect
I could have filched you could have filched he could have filched we could have filched you could have filched they could have filched	I could have been filching you could have been filching he could have been filching we could have been filching you could have been filching they could have been filching

Negation

Simple form	V-ing form
I could not filch you could not filch he could not filch we could not filch you could not filch they could not filch	I could not be filching you could not be filching he could not be filching we could not be filching you could not be filching they could not be filching
Perfect	V-ing perfect
I could not have filched you could not have filched he could not have filched we could not have filched you could not have filched they could not have filched	I could not have been filching you could not have been filching he could not have been filching we could not have been filching you could not have been filching they could not have been filching

Interrogative form

Simple form	V-ing form
could I filch? could you filch? could he filch? could we filch? could you filch? could they filch?	could I be filching? could you be filching? could he be filching? could we be filching? could you be filching? could they be filching?
Perfect	V-ing perfect
could I have filched? could you have filched? could he have filched? could we have filched? could you have filched? could they have filched?	could I have been filching? could you have been filching? could he have been filching? could we have been filching? could you have been filching? could they have been filching?

Interro-negative form

Simple form	V-ing form
could I not filch? could you not filch? could he not filch? could we not filch? could you not filch? could they not filch?	could I not be filching? could you not be filching? could he not be filching? could we not be filching? could you not be filching? could they not be filching?
Perfect	V-ing perfect
could I not have filched? could you not have filched? could he not have filched? could we not have filched? could you not have filched? could they not have filched?	could I not have been filching? could you not have been filching? could he not have been filching? could we not have been filching? could you not have been filching? could they not have been filching?