English verb conjugation
COULD LABEL

Regular verb: label - labelled - labelled

Affirmation

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

Negation

Simple form	V-ing form
I couldn't label you couldn't label he couldn't label we couldn't label you couldn't label they couldn't label	I couldn't be labelling you couldn't be labelling he couldn't be labelling we couldn't be labelling you couldn't be labelling they couldn't be labelling
Perfect	V-ing perfect
I couldn't have labelled you couldn't have labelled he couldn't have labelled we couldn't have labelled you couldn't have labelled they couldn't have labelled	I couldn't have been labelling you couldn't have been labelling he couldn't have been labelling we couldn't have been labelling you couldn't have been labelling they couldn't have been labelling

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I label? couldn't you label? couldn't he label? couldn't we label? couldn't you label? couldn't they label?	couldn't I be labelling? couldn't you be labelling? couldn't he be labelling? couldn't we be labelling? couldn't you be labelling? couldn't they be labelling?
Perfect	V-ing perfect
couldn't I have labelled? couldn't you have labelled? couldn't he have labelled? couldn't we have labelled? couldn't you have labelled? couldn't they have labelled?	couldn't I have been labelling? couldn't you have been labelling? couldn't he have been labelling? couldn't we have been labelling? couldn't you have been labelling? couldn't they have been labelling?