I could machinate you could machinate she could machinate we could machinate you could machinate they could machinate
V-ing form
I could be machinating you could be machinating she could be machinating we could be machinating you could be machinating they could be machinating
Perfect
I could have machinated you could have machinated she could have machinated we could have machinated you could have machinated they could have machinated
V-ing perfect
I could have been machinating you could have been machinating she could have been machinating we could have been machinating you could have been machinating they could have been machinating
Negation
Simple form
I couldn't machinate you couldn't machinate she couldn't machinate we couldn't machinate you couldn't machinate they couldn't machinate
V-ing form
I couldn't be machinating you couldn't be machinating she couldn't be machinating we couldn't be machinating you couldn't be machinating they couldn't be machinating
Perfect
I couldn't have machinated you couldn't have machinated she couldn't have machinated we couldn't have machinated you couldn't have machinated they couldn't have machinated
V-ing perfect
I couldn't have been machinating you couldn't have been machinating she couldn't have been machinating we couldn't have been machinating you couldn't have been machinating they couldn't have been machinating
Interrogative form
Simple form
could I machinate? could you machinate? could she machinate? could we machinate? could you machinate? could they machinate?
V-ing form
could I be machinating? could you be machinating? could she be machinating? could we be machinating? could you be machinating? could they be machinating?
Perfect
could I have machinated? could you have machinated? could she have machinated? could we have machinated? could you have machinated? could they have machinated?
V-ing perfect
could I have been machinating? could you have been machinating? could she have been machinating? could we have been machinating? could you have been machinating? could they have been machinating?
Interro-negative form
Simple form
couldn't I machinate? couldn't you machinate? couldn't she machinate? couldn't we machinate? couldn't you machinate? couldn't they machinate?
V-ing form
couldn't I be machinating? couldn't you be machinating? couldn't she be machinating? couldn't we be machinating? couldn't you be machinating? couldn't they be machinating?
Perfect
couldn't I have machinated? couldn't you have machinated? couldn't she have machinated? couldn't we have machinated? couldn't you have machinated? couldn't they have machinated?
V-ing perfect
couldn't I have been machinating? couldn't you have been machinating? couldn't she have been machinating? couldn't we have been machinating? couldn't you have been machinating? couldn't they have been machinating?