could amalgamate
Regular verb: amalgamate - amalgamated- amalgamated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could amalgamate
you could amalgamate
he could amalgamate
we could amalgamate
you could amalgamate
they could amalgamate 	I could be amalgamating
you could be amalgamating
he could be amalgamating
we could be amalgamating
you could be amalgamating
they could be amalgamating	I could have amalgamated
you could have amalgamated
he could have amalgamated
we could have amalgamated
you could have amalgamated
they could have amalgamated	I could have been amalgamating
you could have been amalgamating
he could have been amalgamating
we could have been amalgamating
you could have been amalgamating
they could have been amalgamating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't amalgamate
you couldn't amalgamate
he couldn't amalgamate
we couldn't amalgamate
you couldn't amalgamate
they couldn't amalgamate 	I couldn't be amalgamating
you couldn't be amalgamating
he couldn't be amalgamating
we couldn't be amalgamating
you couldn't be amalgamating
they couldn't be amalgamating	I couldn't have amalgamated
you couldn't have amalgamated
he couldn't have amalgamated
we couldn't have amalgamated
you couldn't have amalgamated
they couldn't have amalgamated	I couldn't have been amalgamating
you couldn't have been amalgamating
he couldn't have been amalgamating
we couldn't have been amalgamating
you couldn't have been amalgamating
they couldn't have been amalgamating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I amalgamate?
could you amalgamate?
could he amalgamate?
could we amalgamate?
could you amalgamate?
could they amalgamate? 	could I be amalgamating?
could you be amalgamating?
could he be amalgamating?
could we be amalgamating?
could you be amalgamating?
could they be amalgamating? 	could I have amalgamated?
could you have amalgamated?
could he have amalgamated?
could we have amalgamated?
could you have amalgamated?
could they have amalgamated? 	could I have been amalgamating?
could you have been amalgamating?
could he have been amalgamating?
could we have been amalgamating?
could you have been amalgamating?
could they have been amalgamating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I amalgamate?
couldn't you amalgamate?
couldn't he amalgamate?
couldn't we amalgamate?
couldn't you amalgamate?
couldn't they amalgamate? 	couldn't I be amalgamating?
couldn't you be amalgamating?
couldn't he be amalgamating?
couldn't we be amalgamating?
couldn't you be amalgamating?
couldn't they be amalgamating? 	couldn't I have amalgamated?
couldn't you have amalgamated?
couldn't he have amalgamated?
couldn't we have amalgamated?
couldn't you have amalgamated?
couldn't they have amalgamated? 	couldn't I have been amalgamating?
couldn't you have been amalgamating?
couldn't he have been amalgamating?
couldn't we have been amalgamating?
couldn't you have been amalgamating?
couldn't they have been amalgamating?