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