I could relabel you could relabel he could relabel we could relabel you could relabel they could relabel
V-ing form
I could be relabelling you could be relabelling he could be relabelling we could be relabelling you could be relabelling they could be relabelling
Perfect
I could have relabelled you could have relabelled he could have relabelled we could have relabelled you could have relabelled they could have relabelled
V-ing perfect
I could have been relabelling you could have been relabelling he could have been relabelling we could have been relabelling you could have been relabelling they could have been relabelling
Negation
Simple form
I couldn't relabel you couldn't relabel he couldn't relabel we couldn't relabel you couldn't relabel they couldn't relabel
V-ing form
I couldn't be relabelling you couldn't be relabelling he couldn't be relabelling we couldn't be relabelling you couldn't be relabelling they couldn't be relabelling
Perfect
I couldn't have relabelled you couldn't have relabelled he couldn't have relabelled we couldn't have relabelled you couldn't have relabelled they couldn't have relabelled
V-ing perfect
I couldn't have been relabelling you couldn't have been relabelling he couldn't have been relabelling we couldn't have been relabelling you couldn't have been relabelling they couldn't have been relabelling
Interrogative form
Simple form
could I relabel? could you relabel? could he relabel? could we relabel? could you relabel? could they relabel?
V-ing form
could I be relabelling? could you be relabelling? could he be relabelling? could we be relabelling? could you be relabelling? could they be relabelling?
Perfect
could I have relabelled? could you have relabelled? could he have relabelled? could we have relabelled? could you have relabelled? could they have relabelled?
V-ing perfect
could I have been relabelling? could you have been relabelling? could he have been relabelling? could we have been relabelling? could you have been relabelling? could they have been relabelling?
Interro-negative form
Simple form
couldn't I relabel? couldn't you relabel? couldn't he relabel? couldn't we relabel? couldn't you relabel? couldn't they relabel?
V-ing form
couldn't I be relabelling? couldn't you be relabelling? couldn't he be relabelling? couldn't we be relabelling? couldn't you be relabelling? couldn't they be relabelling?
Perfect
couldn't I have relabelled? couldn't you have relabelled? couldn't he have relabelled? couldn't we have relabelled? couldn't you have relabelled? couldn't they have relabelled?
V-ing perfect
couldn't I have been relabelling? couldn't you have been relabelling? couldn't he have been relabelling? couldn't we have been relabelling? couldn't you have been relabelling? couldn't they have been relabelling?