could intermix
Regular verb: intermix - intermixed- intermixed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could intermix
you could intermix
he could intermix
we could intermix
you could intermix
they could intermix 	I could be intermixing
you could be intermixing
he could be intermixing
we could be intermixing
you could be intermixing
they could be intermixing	I could have intermixed
you could have intermixed
he could have intermixed
we could have intermixed
you could have intermixed
they could have intermixed	I could have been intermixing
you could have been intermixing
he could have been intermixing
we could have been intermixing
you could have been intermixing
they could have been intermixing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't intermix
you couldn't intermix
he couldn't intermix
we couldn't intermix
you couldn't intermix
they couldn't intermix 	I couldn't be intermixing
you couldn't be intermixing
he couldn't be intermixing
we couldn't be intermixing
you couldn't be intermixing
they couldn't be intermixing	I couldn't have intermixed
you couldn't have intermixed
he couldn't have intermixed
we couldn't have intermixed
you couldn't have intermixed
they couldn't have intermixed	I couldn't have been intermixing
you couldn't have been intermixing
he couldn't have been intermixing
we couldn't have been intermixing
you couldn't have been intermixing
they couldn't have been intermixing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I intermix?
could you intermix?
could he intermix?
could we intermix?
could you intermix?
could they intermix? 	could I be intermixing?
could you be intermixing?
could he be intermixing?
could we be intermixing?
could you be intermixing?
could they be intermixing? 	could I have intermixed?
could you have intermixed?
could he have intermixed?
could we have intermixed?
could you have intermixed?
could they have intermixed? 	could I have been intermixing?
could you have been intermixing?
could he have been intermixing?
could we have been intermixing?
could you have been intermixing?
could they have been intermixing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I intermix?
couldn't you intermix?
couldn't he intermix?
couldn't we intermix?
couldn't you intermix?
couldn't they intermix? 	couldn't I be intermixing?
couldn't you be intermixing?
couldn't he be intermixing?
couldn't we be intermixing?
couldn't you be intermixing?
couldn't they be intermixing? 	couldn't I have intermixed?
couldn't you have intermixed?
couldn't he have intermixed?
couldn't we have intermixed?
couldn't you have intermixed?
couldn't they have intermixed? 	couldn't I have been intermixing?
couldn't you have been intermixing?
couldn't he have been intermixing?
couldn't we have been intermixing?
couldn't you have been intermixing?
couldn't they have been intermixing?