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