English verb conjugation
COULD COUNTERQUESTION

Regular verb: counterquestion - counterquestioned - counterquestioned

Affirmation

Simple form	V-ing form
I could counterquestion you could counterquestion he could counterquestion we could counterquestion you could counterquestion they could counterquestion	I could be counterquestioning you could be counterquestioning he could be counterquestioning we could be counterquestioning you could be counterquestioning they could be counterquestioning
Perfect	V-ing perfect
I could have counterquestioned you could have counterquestioned he could have counterquestioned we could have counterquestioned you could have counterquestioned they could have counterquestioned	I could have been counterquestioning you could have been counterquestioning he could have been counterquestioning we could have been counterquestioning you could have been counterquestioning they could have been counterquestioning

Negation

Simple form	V-ing form
I couldn't counterquestion you couldn't counterquestion he couldn't counterquestion we couldn't counterquestion you couldn't counterquestion they couldn't counterquestion	I couldn't be counterquestioning you couldn't be counterquestioning he couldn't be counterquestioning we couldn't be counterquestioning you couldn't be counterquestioning they couldn't be counterquestioning
Perfect	V-ing perfect
I couldn't have counterquestioned you couldn't have counterquestioned he couldn't have counterquestioned we couldn't have counterquestioned you couldn't have counterquestioned they couldn't have counterquestioned	I couldn't have been counterquestioning you couldn't have been counterquestioning he couldn't have been counterquestioning we couldn't have been counterquestioning you couldn't have been counterquestioning they couldn't have been counterquestioning

Interrogative form

Simple form	V-ing form
could I counterquestion? could you counterquestion? could he counterquestion? could we counterquestion? could you counterquestion? could they counterquestion?	could I be counterquestioning? could you be counterquestioning? could he be counterquestioning? could we be counterquestioning? could you be counterquestioning? could they be counterquestioning?
Perfect	V-ing perfect
could I have counterquestioned? could you have counterquestioned? could he have counterquestioned? could we have counterquestioned? could you have counterquestioned? could they have counterquestioned?	could I have been counterquestioning? could you have been counterquestioning? could he have been counterquestioning? could we have been counterquestioning? could you have been counterquestioning? could they have been counterquestioning?

Interro-negative form

Simple form	V-ing form
couldn't I counterquestion? couldn't you counterquestion? couldn't he counterquestion? couldn't we counterquestion? couldn't you counterquestion? couldn't they counterquestion?	couldn't I be counterquestioning? couldn't you be counterquestioning? couldn't he be counterquestioning? couldn't we be counterquestioning? couldn't you be counterquestioning? couldn't they be counterquestioning?
Perfect	V-ing perfect
couldn't I have counterquestioned? couldn't you have counterquestioned? couldn't he have counterquestioned? couldn't we have counterquestioned? couldn't you have counterquestioned? couldn't they have counterquestioned?	couldn't I have been counterquestioning? couldn't you have been counterquestioning? couldn't he have been counterquestioning? couldn't we have been counterquestioning? couldn't you have been counterquestioning? couldn't they have been counterquestioning?