English verb conjugation
COULD ARGUE

Regular verb: argue - argued - argued

Affirmation

Simple form	V-ing form
I could argue you could argue he could argue we could argue you could argue they could argue	I could be arguing you could be arguing he could be arguing we could be arguing you could be arguing they could be arguing
Perfect	V-ing perfect
I could have argued you could have argued he could have argued we could have argued you could have argued they could have argued	I could have been arguing you could have been arguing he could have been arguing we could have been arguing you could have been arguing they could have been arguing

Negation

Simple form	V-ing form
I could not argue you could not argue he could not argue we could not argue you could not argue they could not argue	I could not be arguing you could not be arguing he could not be arguing we could not be arguing you could not be arguing they could not be arguing
Perfect	V-ing perfect
I could not have argued you could not have argued he could not have argued we could not have argued you could not have argued they could not have argued	I could not have been arguing you could not have been arguing he could not have been arguing we could not have been arguing you could not have been arguing they could not have been arguing

Interrogative form

Simple form	V-ing form
could I argue? could you argue? could he argue? could we argue? could you argue? could they argue?	could I be arguing? could you be arguing? could he be arguing? could we be arguing? could you be arguing? could they be arguing?
Perfect	V-ing perfect
could I have argued? could you have argued? could he have argued? could we have argued? could you have argued? could they have argued?	could I have been arguing? could you have been arguing? could he have been arguing? could we have been arguing? could you have been arguing? could they have been arguing?

Interro-negative form

Simple form	V-ing form
could I not argue? could you not argue? could he not argue? could we not argue? could you not argue? could they not argue?	could I not be arguing? could you not be arguing? could he not be arguing? could we not be arguing? could you not be arguing? could they not be arguing?
Perfect	V-ing perfect
could I not have argued? could you not have argued? could he not have argued? could we not have argued? could you not have argued? could they not have argued?	could I not have been arguing? could you not have been arguing? could he not have been arguing? could we not have been arguing? could you not have been arguing? could they not have been arguing?