can catalyze
Regular verb: catalyze - catalyzed- catalyzed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can catalyze
you can catalyze
he can catalyze
we can catalyze
you can catalyze
they can catalyze 	I can be catalyzing
you can be catalyzing
he can be catalyzing
we can be catalyzing
you can be catalyzing
they can be catalyzing	I can have catalyzed
you can have catalyzed
he can have catalyzed
we can have catalyzed
you can have catalyzed
they can have catalyzed	I can have been catalyzing
you can have been catalyzing
he can have been catalyzing
we can have been catalyzing
you can have been catalyzing
they can have been catalyzing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't catalyze
you can't catalyze
he can't catalyze
we can't catalyze
you can't catalyze
they can't catalyze 	I can't be catalyzing
you can't be catalyzing
he can't be catalyzing
we can't be catalyzing
you can't be catalyzing
they can't be catalyzing	I can't have catalyzed
you can't have catalyzed
he can't have catalyzed
we can't have catalyzed
you can't have catalyzed
they can't have catalyzed	I can't have been catalyzing
you can't have been catalyzing
he can't have been catalyzing
we can't have been catalyzing
you can't have been catalyzing
they can't have been catalyzing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I catalyze?
can you catalyze?
can he catalyze?
can we catalyze?
can you catalyze?
can they catalyze? 	can I be catalyzing?
can you be catalyzing?
can he be catalyzing?
can we be catalyzing?
can you be catalyzing?
can they be catalyzing? 	can I have catalyzed?
can you have catalyzed?
can he have catalyzed?
can we have catalyzed?
can you have catalyzed?
can they have catalyzed? 	can I have been catalyzing?
can you have been catalyzing?
can he have been catalyzing?
can we have been catalyzing?
can you have been catalyzing?
can they have been catalyzing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I catalyze?
can't you catalyze?
can't he catalyze?
can't we catalyze?
can't you catalyze?
can't they catalyze? 	can't I be catalyzing?
can't you be catalyzing?
can't he be catalyzing?
can't we be catalyzing?
can't you be catalyzing?
can't they be catalyzing? 	can't I have catalyzed?
can't you have catalyzed?
can't he have catalyzed?
can't we have catalyzed?
can't you have catalyzed?
can't they have catalyzed? 	can't I have been catalyzing?
can't you have been catalyzing?
can't he have been catalyzing?
can't we have been catalyzing?
can't you have been catalyzing?
can't they have been catalyzing?