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