could decant
Regular verb: decant - decanted- decanted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could decant
you could decant
she could decant
we could decant
you could decant
they could decant 	I could be decanting
you could be decanting
she could be decanting
we could be decanting
you could be decanting
they could be decanting	I could have decanted
you could have decanted
she could have decanted
we could have decanted
you could have decanted
they could have decanted	I could have been decanting
you could have been decanting
she could have been decanting
we could have been decanting
you could have been decanting
they could have been decanting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't decant
you couldn't decant
she couldn't decant
we couldn't decant
you couldn't decant
they couldn't decant 	I couldn't be decanting
you couldn't be decanting
she couldn't be decanting
we couldn't be decanting
you couldn't be decanting
they couldn't be decanting	I couldn't have decanted
you couldn't have decanted
she couldn't have decanted
we couldn't have decanted
you couldn't have decanted
they couldn't have decanted	I couldn't have been decanting
you couldn't have been decanting
she couldn't have been decanting
we couldn't have been decanting
you couldn't have been decanting
they couldn't have been decanting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I decant?
could you decant?
could she decant?
could we decant?
could you decant?
could they decant? 	could I be decanting?
could you be decanting?
could she be decanting?
could we be decanting?
could you be decanting?
could they be decanting? 	could I have decanted?
could you have decanted?
could she have decanted?
could we have decanted?
could you have decanted?
could they have decanted? 	could I have been decanting?
could you have been decanting?
could she have been decanting?
could we have been decanting?
could you have been decanting?
could they have been decanting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I decant?
couldn't you decant?
couldn't she decant?
couldn't we decant?
couldn't you decant?
couldn't they decant? 	couldn't I be decanting?
couldn't you be decanting?
couldn't she be decanting?
couldn't we be decanting?
couldn't you be decanting?
couldn't they be decanting? 	couldn't I have decanted?
couldn't you have decanted?
couldn't she have decanted?
couldn't we have decanted?
couldn't you have decanted?
couldn't they have decanted? 	couldn't I have been decanting?
couldn't you have been decanting?
couldn't she have been decanting?
couldn't we have been decanting?
couldn't you have been decanting?
couldn't they have been decanting?