I could proportionate you could proportionate he could proportionate we could proportionate you could proportionate they could proportionate
V-ing form
I could be proportionating you could be proportionating he could be proportionating we could be proportionating you could be proportionating they could be proportionating
Perfect
I could have proportionated you could have proportionated he could have proportionated we could have proportionated you could have proportionated they could have proportionated
V-ing perfect
I could have been proportionating you could have been proportionating he could have been proportionating we could have been proportionating you could have been proportionating they could have been proportionating
Negation
Simple form
I could not proportionate you could not proportionate he could not proportionate we could not proportionate you could not proportionate they could not proportionate
V-ing form
I could not be proportionating you could not be proportionating he could not be proportionating we could not be proportionating you could not be proportionating they could not be proportionating
Perfect
I could not have proportionated you could not have proportionated he could not have proportionated we could not have proportionated you could not have proportionated they could not have proportionated
V-ing perfect
I could not have been proportionating you could not have been proportionating he could not have been proportionating we could not have been proportionating you could not have been proportionating they could not have been proportionating
Interrogative form
Simple form
could I proportionate? could you proportionate? could he proportionate? could we proportionate? could you proportionate? could they proportionate?
V-ing form
could I be proportionating? could you be proportionating? could he be proportionating? could we be proportionating? could you be proportionating? could they be proportionating?
Perfect
could I have proportionated? could you have proportionated? could he have proportionated? could we have proportionated? could you have proportionated? could they have proportionated?
V-ing perfect
could I have been proportionating? could you have been proportionating? could he have been proportionating? could we have been proportionating? could you have been proportionating? could they have been proportionating?
Interro-negative form
Simple form
could I not proportionate? could you not proportionate? could he not proportionate? could we not proportionate? could you not proportionate? could they not proportionate?
V-ing form
could I not be proportionating? could you not be proportionating? could he not be proportionating? could we not be proportionating? could you not be proportionating? could they not be proportionating?
Perfect
could I not have proportionated? could you not have proportionated? could he not have proportionated? could we not have proportionated? could you not have proportionated? could they not have proportionated?
V-ing perfect
could I not have been proportionating? could you not have been proportionating? could he not have been proportionating? could we not have been proportionating? could you not have been proportionating? could they not have been proportionating?