could distress
Regular verb: distress - distressed- distressed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could distress
you could distress
he could distress
we could distress
you could distress
they could distress 	I could be distressing
you could be distressing
he could be distressing
we could be distressing
you could be distressing
they could be distressing	I could have distressed
you could have distressed
he could have distressed
we could have distressed
you could have distressed
they could have distressed	I could have been distressing
you could have been distressing
he could have been distressing
we could have been distressing
you could have been distressing
they could have been distressing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't distress
you couldn't distress
he couldn't distress
we couldn't distress
you couldn't distress
they couldn't distress 	I couldn't be distressing
you couldn't be distressing
he couldn't be distressing
we couldn't be distressing
you couldn't be distressing
they couldn't be distressing	I couldn't have distressed
you couldn't have distressed
he couldn't have distressed
we couldn't have distressed
you couldn't have distressed
they couldn't have distressed	I couldn't have been distressing
you couldn't have been distressing
he couldn't have been distressing
we couldn't have been distressing
you couldn't have been distressing
they couldn't have been distressing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I distress?
could you distress?
could he distress?
could we distress?
could you distress?
could they distress? 	could I be distressing?
could you be distressing?
could he be distressing?
could we be distressing?
could you be distressing?
could they be distressing? 	could I have distressed?
could you have distressed?
could he have distressed?
could we have distressed?
could you have distressed?
could they have distressed? 	could I have been distressing?
could you have been distressing?
could he have been distressing?
could we have been distressing?
could you have been distressing?
could they have been distressing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I distress?
couldn't you distress?
couldn't he distress?
couldn't we distress?
couldn't you distress?
couldn't they distress? 	couldn't I be distressing?
couldn't you be distressing?
couldn't he be distressing?
couldn't we be distressing?
couldn't you be distressing?
couldn't they be distressing? 	couldn't I have distressed?
couldn't you have distressed?
couldn't he have distressed?
couldn't we have distressed?
couldn't you have distressed?
couldn't they have distressed? 	couldn't I have been distressing?
couldn't you have been distressing?
couldn't he have been distressing?
couldn't we have been distressing?
couldn't you have been distressing?
couldn't they have been distressing?