could porcelainize
Regular verb: porcelainize - porcelainized- porcelainized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could porcelainize
you could porcelainize
he could porcelainize
we could porcelainize
you could porcelainize
they could porcelainize 	I could be porcelainizing
you could be porcelainizing
he could be porcelainizing
we could be porcelainizing
you could be porcelainizing
they could be porcelainizing	I could have porcelainized
you could have porcelainized
he could have porcelainized
we could have porcelainized
you could have porcelainized
they could have porcelainized	I could have been porcelainizing
you could have been porcelainizing
he could have been porcelainizing
we could have been porcelainizing
you could have been porcelainizing
they could have been porcelainizing	

Negation 	
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I couldn't porcelainize
you couldn't porcelainize
he couldn't porcelainize
we couldn't porcelainize
you couldn't porcelainize
they couldn't porcelainize 	I couldn't be porcelainizing
you couldn't be porcelainizing
he couldn't be porcelainizing
we couldn't be porcelainizing
you couldn't be porcelainizing
they couldn't be porcelainizing	I couldn't have porcelainized
you couldn't have porcelainized
he couldn't have porcelainized
we couldn't have porcelainized
you couldn't have porcelainized
they couldn't have porcelainized	I couldn't have been porcelainizing
you couldn't have been porcelainizing
he couldn't have been porcelainizing
we couldn't have been porcelainizing
you couldn't have been porcelainizing
they couldn't have been porcelainizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I porcelainize?
could you porcelainize?
could he porcelainize?
could we porcelainize?
could you porcelainize?
could they porcelainize? 	could I be porcelainizing?
could you be porcelainizing?
could he be porcelainizing?
could we be porcelainizing?
could you be porcelainizing?
could they be porcelainizing? 	could I have porcelainized?
could you have porcelainized?
could he have porcelainized?
could we have porcelainized?
could you have porcelainized?
could they have porcelainized? 	could I have been porcelainizing?
could you have been porcelainizing?
could he have been porcelainizing?
could we have been porcelainizing?
could you have been porcelainizing?
could they have been porcelainizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I porcelainize?
couldn't you porcelainize?
couldn't he porcelainize?
couldn't we porcelainize?
couldn't you porcelainize?
couldn't they porcelainize? 	couldn't I be porcelainizing?
couldn't you be porcelainizing?
couldn't he be porcelainizing?
couldn't we be porcelainizing?
couldn't you be porcelainizing?
couldn't they be porcelainizing? 	couldn't I have porcelainized?
couldn't you have porcelainized?
couldn't he have porcelainized?
couldn't we have porcelainized?
couldn't you have porcelainized?
couldn't they have porcelainized? 	couldn't I have been porcelainizing?
couldn't you have been porcelainizing?
couldn't he have been porcelainizing?
couldn't we have been porcelainizing?
couldn't you have been porcelainizing?
couldn't they have been porcelainizing?