could italicize
Regular verb: italicize - italicized- italicized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could italicize
you could italicize
he could italicize
we could italicize
you could italicize
they could italicize 	I could be italicizing
you could be italicizing
he could be italicizing
we could be italicizing
you could be italicizing
they could be italicizing	I could have italicized
you could have italicized
he could have italicized
we could have italicized
you could have italicized
they could have italicized	I could have been italicizing
you could have been italicizing
he could have been italicizing
we could have been italicizing
you could have been italicizing
they could have been italicizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't italicize
you couldn't italicize
he couldn't italicize
we couldn't italicize
you couldn't italicize
they couldn't italicize 	I couldn't be italicizing
you couldn't be italicizing
he couldn't be italicizing
we couldn't be italicizing
you couldn't be italicizing
they couldn't be italicizing	I couldn't have italicized
you couldn't have italicized
he couldn't have italicized
we couldn't have italicized
you couldn't have italicized
they couldn't have italicized	I couldn't have been italicizing
you couldn't have been italicizing
he couldn't have been italicizing
we couldn't have been italicizing
you couldn't have been italicizing
they couldn't have been italicizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I italicize?
could you italicize?
could he italicize?
could we italicize?
could you italicize?
could they italicize? 	could I be italicizing?
could you be italicizing?
could he be italicizing?
could we be italicizing?
could you be italicizing?
could they be italicizing? 	could I have italicized?
could you have italicized?
could he have italicized?
could we have italicized?
could you have italicized?
could they have italicized? 	could I have been italicizing?
could you have been italicizing?
could he have been italicizing?
could we have been italicizing?
could you have been italicizing?
could they have been italicizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I italicize?
couldn't you italicize?
couldn't he italicize?
couldn't we italicize?
couldn't you italicize?
couldn't they italicize? 	couldn't I be italicizing?
couldn't you be italicizing?
couldn't he be italicizing?
couldn't we be italicizing?
couldn't you be italicizing?
couldn't they be italicizing? 	couldn't I have italicized?
couldn't you have italicized?
couldn't he have italicized?
couldn't we have italicized?
couldn't you have italicized?
couldn't they have italicized? 	couldn't I have been italicizing?
couldn't you have been italicizing?
couldn't he have been italicizing?
couldn't we have been italicizing?
couldn't you have been italicizing?
couldn't they have been italicizing?