can lack
Verbo regolare: lack - lacked- lacked

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can lack
you can lack
he can lack
we can lack
you can lack
they can lack 	I can be lacking
you can be lacking
he can be lacking
we can be lacking
you can be lacking
they can be lacking	I can have lacked
you can have lacked
he can have lacked
we can have lacked
you can have lacked
they can have lacked	I can have been lacking
you can have been lacking
he can have been lacking
we can have been lacking
you can have been lacking
they can have been lacking	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can't lack
you can't lack
he can't lack
we can't lack
you can't lack
they can't lack 	I can't be lacking
you can't be lacking
he can't be lacking
we can't be lacking
you can't be lacking
they can't be lacking	I can't have lacked
you can't have lacked
he can't have lacked
we can't have lacked
you can't have lacked
they can't have lacked	I can't have been lacking
you can't have been lacking
he can't have been lacking
we can't have been lacking
you can't have been lacking
they can't have been lacking	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I lack?
can you lack?
can he lack?
can we lack?
can you lack?
can they lack? 	can I be lacking?
can you be lacking?
can he be lacking?
can we be lacking?
can you be lacking?
can they be lacking? 	can I have lacked?
can you have lacked?
can he have lacked?
can we have lacked?
can you have lacked?
can they have lacked? 	can I have been lacking?
can you have been lacking?
can he have been lacking?
can we have been lacking?
can you have been lacking?
can they have been lacking? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can't I lack?
can't you lack?
can't he lack?
can't we lack?
can't you lack?
can't they lack? 	can't I be lacking?
can't you be lacking?
can't he be lacking?
can't we be lacking?
can't you be lacking?
can't they be lacking? 	can't I have lacked?
can't you have lacked?
can't he have lacked?
can't we have lacked?
can't you have lacked?
can't they have lacked? 	can't I have been lacking?
can't you have been lacking?
can't he have been lacking?
can't we have been lacking?
can't you have been lacking?
can't they have been lacking?