could bacterize
Regular verb: bacterize - bacterized- bacterized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bacterize
you could bacterize
she could bacterize
we could bacterize
you could bacterize
they could bacterize 	I could be bacterizing
you could be bacterizing
she could be bacterizing
we could be bacterizing
you could be bacterizing
they could be bacterizing	I could have bacterized
you could have bacterized
she could have bacterized
we could have bacterized
you could have bacterized
they could have bacterized	I could have been bacterizing
you could have been bacterizing
she could have been bacterizing
we could have been bacterizing
you could have been bacterizing
they could have been bacterizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bacterize
you couldn't bacterize
she couldn't bacterize
we couldn't bacterize
you couldn't bacterize
they couldn't bacterize 	I couldn't be bacterizing
you couldn't be bacterizing
she couldn't be bacterizing
we couldn't be bacterizing
you couldn't be bacterizing
they couldn't be bacterizing	I couldn't have bacterized
you couldn't have bacterized
she couldn't have bacterized
we couldn't have bacterized
you couldn't have bacterized
they couldn't have bacterized	I couldn't have been bacterizing
you couldn't have been bacterizing
she couldn't have been bacterizing
we couldn't have been bacterizing
you couldn't have been bacterizing
they couldn't have been bacterizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bacterize?
could you bacterize?
could she bacterize?
could we bacterize?
could you bacterize?
could they bacterize? 	could I be bacterizing?
could you be bacterizing?
could she be bacterizing?
could we be bacterizing?
could you be bacterizing?
could they be bacterizing? 	could I have bacterized?
could you have bacterized?
could she have bacterized?
could we have bacterized?
could you have bacterized?
could they have bacterized? 	could I have been bacterizing?
could you have been bacterizing?
could she have been bacterizing?
could we have been bacterizing?
could you have been bacterizing?
could they have been bacterizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bacterize?
couldn't you bacterize?
couldn't she bacterize?
couldn't we bacterize?
couldn't you bacterize?
couldn't they bacterize? 	couldn't I be bacterizing?
couldn't you be bacterizing?
couldn't she be bacterizing?
couldn't we be bacterizing?
couldn't you be bacterizing?
couldn't they be bacterizing? 	couldn't I have bacterized?
couldn't you have bacterized?
couldn't she have bacterized?
couldn't we have bacterized?
couldn't you have bacterized?
couldn't they have bacterized? 	couldn't I have been bacterizing?
couldn't you have been bacterizing?
couldn't she have been bacterizing?
couldn't we have been bacterizing?
couldn't you have been bacterizing?
couldn't they have been bacterizing?