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