can lemmatize
Regular verb: lemmatize - lemmatized- lemmatized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can lemmatize
you can lemmatize
he can lemmatize
we can lemmatize
you can lemmatize
they can lemmatize 	I can be lemmatizing
you can be lemmatizing
he can be lemmatizing
we can be lemmatizing
you can be lemmatizing
they can be lemmatizing	I can have lemmatized
you can have lemmatized
he can have lemmatized
we can have lemmatized
you can have lemmatized
they can have lemmatized	I can have been lemmatizing
you can have been lemmatizing
he can have been lemmatizing
we can have been lemmatizing
you can have been lemmatizing
they can have been lemmatizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't lemmatize
you can't lemmatize
he can't lemmatize
we can't lemmatize
you can't lemmatize
they can't lemmatize 	I can't be lemmatizing
you can't be lemmatizing
he can't be lemmatizing
we can't be lemmatizing
you can't be lemmatizing
they can't be lemmatizing	I can't have lemmatized
you can't have lemmatized
he can't have lemmatized
we can't have lemmatized
you can't have lemmatized
they can't have lemmatized	I can't have been lemmatizing
you can't have been lemmatizing
he can't have been lemmatizing
we can't have been lemmatizing
you can't have been lemmatizing
they can't have been lemmatizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I lemmatize?
can you lemmatize?
can he lemmatize?
can we lemmatize?
can you lemmatize?
can they lemmatize? 	can I be lemmatizing?
can you be lemmatizing?
can he be lemmatizing?
can we be lemmatizing?
can you be lemmatizing?
can they be lemmatizing? 	can I have lemmatized?
can you have lemmatized?
can he have lemmatized?
can we have lemmatized?
can you have lemmatized?
can they have lemmatized? 	can I have been lemmatizing?
can you have been lemmatizing?
can he have been lemmatizing?
can we have been lemmatizing?
can you have been lemmatizing?
can they have been lemmatizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I lemmatize?
can't you lemmatize?
can't he lemmatize?
can't we lemmatize?
can't you lemmatize?
can't they lemmatize? 	can't I be lemmatizing?
can't you be lemmatizing?
can't he be lemmatizing?
can't we be lemmatizing?
can't you be lemmatizing?
can't they be lemmatizing? 	can't I have lemmatized?
can't you have lemmatized?
can't he have lemmatized?
can't we have lemmatized?
can't you have lemmatized?
can't they have lemmatized? 	can't I have been lemmatizing?
can't you have been lemmatizing?
can't he have been lemmatizing?
can't we have been lemmatizing?
can't you have been lemmatizing?
can't they have been lemmatizing?