can label
Regular verb: label - labelled- labelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can label
you can label
he can label
we can label
you can label
they can label 	I can be labelling
you can be labelling
he can be labelling
we can be labelling
you can be labelling
they can be labelling	I can have labelled
you can have labelled
he can have labelled
we can have labelled
you can have labelled
they can have labelled	I can have been labelling
you can have been labelling
he can have been labelling
we can have been labelling
you can have been labelling
they can have been labelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot label
you cannot label
he cannot label
we cannot label
you cannot label
they cannot label 	I cannot be labelling
you cannot be labelling
he cannot be labelling
we cannot be labelling
you cannot be labelling
they cannot be labelling	I cannot have labelled
you cannot have labelled
he cannot have labelled
we cannot have labelled
you cannot have labelled
they cannot have labelled	I cannot have been labelling
you cannot have been labelling
he cannot have been labelling
we cannot have been labelling
you cannot have been labelling
they cannot have been labelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I label?
can you label?
can he label?
can we label?
can you label?
can they label? 	can I be labelling?
can you be labelling?
can he be labelling?
can we be labelling?
can you be labelling?
can they be labelling? 	can I have labelled?
can you have labelled?
can he have labelled?
can we have labelled?
can you have labelled?
can they have labelled? 	can I have been labelling?
can you have been labelling?
can he have been labelling?
can we have been labelling?
can you have been labelling?
can they have been labelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not label?
can you not label?
can he not label?
can we not label?
can you not label?
can they not label? 	can I not be labelling?
can you not be labelling?
can he not be labelling?
can we not be labelling?
can you not be labelling?
can they not be labelling? 	can I not have labelled?
can you not have labelled?
can he not have labelled?
can we not have labelled?
can you not have labelled?
can they not have labelled? 	can I not have been labelling?
can you not have been labelling?
can he not have been labelling?
can we not have been labelling?
can you not have been labelling?
can they not have been labelling?