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