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