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