I could proportionate you could proportionate she could proportionate we could proportionate you could proportionate they could proportionate
V-ing form
I could be proportionating you could be proportionating she could be proportionating we could be proportionating you could be proportionating they could be proportionating
Perfect
I could have proportionated you could have proportionated she 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 she could have been proportionating we could have been proportionating you could have been proportionating they could have been proportionating
Negation
Simple form
I couldn't proportionate you couldn't proportionate she couldn't proportionate we couldn't proportionate you couldn't proportionate they couldn't proportionate
V-ing form
I couldn't be proportionating you couldn't be proportionating she couldn't be proportionating we couldn't be proportionating you couldn't be proportionating they couldn't be proportionating
Perfect
I couldn't have proportionated you couldn't have proportionated she couldn't have proportionated we couldn't have proportionated you couldn't have proportionated they couldn't have proportionated
V-ing perfect
I couldn't have been proportionating you couldn't have been proportionating she couldn't have been proportionating we couldn't have been proportionating you couldn't have been proportionating they couldn't have been proportionating
Interrogative form
Simple form
could I proportionate? could you proportionate? could she proportionate? could we proportionate? could you proportionate? could they proportionate?
V-ing form
could I be proportionating? could you be proportionating? could she be proportionating? could we be proportionating? could you be proportionating? could they be proportionating?
Perfect
could I have proportionated? could you have proportionated? could she 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 she have been proportionating? could we have been proportionating? could you have been proportionating? could they have been proportionating?
Interro-negative form
Simple form
couldn't I proportionate? couldn't you proportionate? couldn't she proportionate? couldn't we proportionate? couldn't you proportionate? couldn't they proportionate?
V-ing form
couldn't I be proportionating? couldn't you be proportionating? couldn't she be proportionating? couldn't we be proportionating? couldn't you be proportionating? couldn't they be proportionating?
Perfect
couldn't I have proportionated? couldn't you have proportionated? couldn't she have proportionated? couldn't we have proportionated? couldn't you have proportionated? couldn't they have proportionated?
V-ing perfect
couldn't I have been proportionating? couldn't you have been proportionating? couldn't she have been proportionating? couldn't we have been proportionating? couldn't you have been proportionating? couldn't they have been proportionating?