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