English verb conjugation
COULD GUILLOTINE

Regular verb: guillotine - guillotined - guillotined

Affirmation

Simple form	V-ing form
I could guillotine you could guillotine she could guillotine we could guillotine you could guillotine they could guillotine	I could be guillotining you could be guillotining she could be guillotining we could be guillotining you could be guillotining they could be guillotining
Perfect	V-ing perfect
I could have guillotined you could have guillotined she could have guillotined we could have guillotined you could have guillotined they could have guillotined	I could have been guillotining you could have been guillotining she could have been guillotining we could have been guillotining you could have been guillotining they could have been guillotining

Negation

Simple form	V-ing form
I couldn't guillotine you couldn't guillotine she couldn't guillotine we couldn't guillotine you couldn't guillotine they couldn't guillotine	I couldn't be guillotining you couldn't be guillotining she couldn't be guillotining we couldn't be guillotining you couldn't be guillotining they couldn't be guillotining
Perfect	V-ing perfect
I couldn't have guillotined you couldn't have guillotined she couldn't have guillotined we couldn't have guillotined you couldn't have guillotined they couldn't have guillotined	I couldn't have been guillotining you couldn't have been guillotining she couldn't have been guillotining we couldn't have been guillotining you couldn't have been guillotining they couldn't have been guillotining

Interrogative form

Simple form	V-ing form
could I guillotine? could you guillotine? could she guillotine? could we guillotine? could you guillotine? could they guillotine?	could I be guillotining? could you be guillotining? could she be guillotining? could we be guillotining? could you be guillotining? could they be guillotining?
Perfect	V-ing perfect
could I have guillotined? could you have guillotined? could she have guillotined? could we have guillotined? could you have guillotined? could they have guillotined?	could I have been guillotining? could you have been guillotining? could she have been guillotining? could we have been guillotining? could you have been guillotining? could they have been guillotining?

Interro-negative form

Simple form	V-ing form
couldn't I guillotine? couldn't you guillotine? couldn't she guillotine? couldn't we guillotine? couldn't you guillotine? couldn't they guillotine?	couldn't I be guillotining? couldn't you be guillotining? couldn't she be guillotining? couldn't we be guillotining? couldn't you be guillotining? couldn't they be guillotining?
Perfect	V-ing perfect
couldn't I have guillotined? couldn't you have guillotined? couldn't she have guillotined? couldn't we have guillotined? couldn't you have guillotined? couldn't they have guillotined?	couldn't I have been guillotining? couldn't you have been guillotining? couldn't she have been guillotining? couldn't we have been guillotining? couldn't you have been guillotining? couldn't they have been guillotining?