I could fracture you could fracture she could fracture we could fracture you could fracture they could fracture
V-ing form
I could be fracturing you could be fracturing she could be fracturing we could be fracturing you could be fracturing they could be fracturing
Perfect
I could have fractured you could have fractured she could have fractured we could have fractured you could have fractured they could have fractured
V-ing perfect
I could have been fracturing you could have been fracturing she could have been fracturing we could have been fracturing you could have been fracturing they could have been fracturing
Negation
Simple form
I could not fracture you could not fracture she could not fracture we could not fracture you could not fracture they could not fracture
V-ing form
I could not be fracturing you could not be fracturing she could not be fracturing we could not be fracturing you could not be fracturing they could not be fracturing
Perfect
I could not have fractured you could not have fractured she could not have fractured we could not have fractured you could not have fractured they could not have fractured
V-ing perfect
I could not have been fracturing you could not have been fracturing she could not have been fracturing we could not have been fracturing you could not have been fracturing they could not have been fracturing
Interrogative form
Simple form
could I fracture? could you fracture? could she fracture? could we fracture? could you fracture? could they fracture?
V-ing form
could I be fracturing? could you be fracturing? could she be fracturing? could we be fracturing? could you be fracturing? could they be fracturing?
Perfect
could I have fractured? could you have fractured? could she have fractured? could we have fractured? could you have fractured? could they have fractured?
V-ing perfect
could I have been fracturing? could you have been fracturing? could she have been fracturing? could we have been fracturing? could you have been fracturing? could they have been fracturing?
Interro-negative form
Simple form
could I not fracture? could you not fracture? could she not fracture? could we not fracture? could you not fracture? could they not fracture?
V-ing form
could I not be fracturing? could you not be fracturing? could she not be fracturing? could we not be fracturing? could you not be fracturing? could they not be fracturing?
Perfect
could I not have fractured? could you not have fractured? could she not have fractured? could we not have fractured? could you not have fractured? could they not have fractured?
V-ing perfect
could I not have been fracturing? could you not have been fracturing? could she not have been fracturing? could we not have been fracturing? could you not have been fracturing? could they not have been fracturing?