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