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