English verb conjugation
COULD LIMN

Regular verb: limn - limned - limned

Affirmation

Simple form	V-ing form
I could limn you could limn he could limn we could limn you could limn they could limn	I could be limning you could be limning he could be limning we could be limning you could be limning they could be limning
Perfect	V-ing perfect
I could have limned you could have limned he could have limned we could have limned you could have limned they could have limned	I could have been limning you could have been limning he could have been limning we could have been limning you could have been limning they could have been limning

Negation

Simple form	V-ing form
I couldn't limn you couldn't limn he couldn't limn we couldn't limn you couldn't limn they couldn't limn	I couldn't be limning you couldn't be limning he couldn't be limning we couldn't be limning you couldn't be limning they couldn't be limning
Perfect	V-ing perfect
I couldn't have limned you couldn't have limned he couldn't have limned we couldn't have limned you couldn't have limned they couldn't have limned	I couldn't have been limning you couldn't have been limning he couldn't have been limning we couldn't have been limning you couldn't have been limning they couldn't have been limning

Interrogative form

Simple form	V-ing form
could I limn? could you limn? could he limn? could we limn? could you limn? could they limn?	could I be limning? could you be limning? could he be limning? could we be limning? could you be limning? could they be limning?
Perfect	V-ing perfect
could I have limned? could you have limned? could he have limned? could we have limned? could you have limned? could they have limned?	could I have been limning? could you have been limning? could he have been limning? could we have been limning? could you have been limning? could they have been limning?

Interro-negative form

Simple form	V-ing form
couldn't I limn? couldn't you limn? couldn't he limn? couldn't we limn? couldn't you limn? couldn't they limn?	couldn't I be limning? couldn't you be limning? couldn't he be limning? couldn't we be limning? couldn't you be limning? couldn't they be limning?
Perfect	V-ing perfect
couldn't I have limned? couldn't you have limned? couldn't he have limned? couldn't we have limned? couldn't you have limned? couldn't they have limned?	couldn't I have been limning? couldn't you have been limning? couldn't he have been limning? couldn't we have been limning? couldn't you have been limning? couldn't they have been limning?