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