could mourn
Regular verb: mourn - mourned- mourned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mourn
you could mourn
she could mourn
we could mourn
you could mourn
they could mourn 	I could be mourning
you could be mourning
she could be mourning
we could be mourning
you could be mourning
they could be mourning	I could have mourned
you could have mourned
she could have mourned
we could have mourned
you could have mourned
they could have mourned	I could have been mourning
you could have been mourning
she could have been mourning
we could have been mourning
you could have been mourning
they could have been mourning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't mourn
you couldn't mourn
she couldn't mourn
we couldn't mourn
you couldn't mourn
they couldn't mourn 	I couldn't be mourning
you couldn't be mourning
she couldn't be mourning
we couldn't be mourning
you couldn't be mourning
they couldn't be mourning	I couldn't have mourned
you couldn't have mourned
she couldn't have mourned
we couldn't have mourned
you couldn't have mourned
they couldn't have mourned	I couldn't have been mourning
you couldn't have been mourning
she couldn't have been mourning
we couldn't have been mourning
you couldn't have been mourning
they couldn't have been mourning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mourn?
could you mourn?
could she mourn?
could we mourn?
could you mourn?
could they mourn? 	could I be mourning?
could you be mourning?
could she be mourning?
could we be mourning?
could you be mourning?
could they be mourning? 	could I have mourned?
could you have mourned?
could she have mourned?
could we have mourned?
could you have mourned?
could they have mourned? 	could I have been mourning?
could you have been mourning?
could she have been mourning?
could we have been mourning?
could you have been mourning?
could they have been mourning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mourn?
couldn't you mourn?
couldn't she mourn?
couldn't we mourn?
couldn't you mourn?
couldn't they mourn? 	couldn't I be mourning?
couldn't you be mourning?
couldn't she be mourning?
couldn't we be mourning?
couldn't you be mourning?
couldn't they be mourning? 	couldn't I have mourned?
couldn't you have mourned?
couldn't she have mourned?
couldn't we have mourned?
couldn't you have mourned?
couldn't they have mourned? 	couldn't I have been mourning?
couldn't you have been mourning?
couldn't she have been mourning?
couldn't we have been mourning?
couldn't you have been mourning?
couldn't they have been mourning?