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