could moulder
Regular verb: moulder - mouldered- mouldered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could moulder
you could moulder
she could moulder
we could moulder
you could moulder
they could moulder 	I could be mouldering
you could be mouldering
she could be mouldering
we could be mouldering
you could be mouldering
they could be mouldering	I could have mouldered
you could have mouldered
she could have mouldered
we could have mouldered
you could have mouldered
they could have mouldered	I could have been mouldering
you could have been mouldering
she could have been mouldering
we could have been mouldering
you could have been mouldering
they could have been mouldering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't moulder
you couldn't moulder
she couldn't moulder
we couldn't moulder
you couldn't moulder
they couldn't moulder 	I couldn't be mouldering
you couldn't be mouldering
she couldn't be mouldering
we couldn't be mouldering
you couldn't be mouldering
they couldn't be mouldering	I couldn't have mouldered
you couldn't have mouldered
she couldn't have mouldered
we couldn't have mouldered
you couldn't have mouldered
they couldn't have mouldered	I couldn't have been mouldering
you couldn't have been mouldering
she couldn't have been mouldering
we couldn't have been mouldering
you couldn't have been mouldering
they couldn't have been mouldering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I moulder?
could you moulder?
could she moulder?
could we moulder?
could you moulder?
could they moulder? 	could I be mouldering?
could you be mouldering?
could she be mouldering?
could we be mouldering?
could you be mouldering?
could they be mouldering? 	could I have mouldered?
could you have mouldered?
could she have mouldered?
could we have mouldered?
could you have mouldered?
could they have mouldered? 	could I have been mouldering?
could you have been mouldering?
could she have been mouldering?
could we have been mouldering?
could you have been mouldering?
could they have been mouldering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I moulder?
couldn't you moulder?
couldn't she moulder?
couldn't we moulder?
couldn't you moulder?
couldn't they moulder? 	couldn't I be mouldering?
couldn't you be mouldering?
couldn't she be mouldering?
couldn't we be mouldering?
couldn't you be mouldering?
couldn't they be mouldering? 	couldn't I have mouldered?
couldn't you have mouldered?
couldn't she have mouldered?
couldn't we have mouldered?
couldn't you have mouldered?
couldn't they have mouldered? 	couldn't I have been mouldering?
couldn't you have been mouldering?
couldn't she have been mouldering?
couldn't we have been mouldering?
couldn't you have been mouldering?
couldn't they have been mouldering?