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