English verb conjugation
COULD CRIPPLE

Regular verb: cripple - crippled - crippled

Affirmation

Simple form	V-ing form
I could cripple you could cripple she could cripple we could cripple you could cripple they could cripple	I could be crippling you could be crippling she could be crippling we could be crippling you could be crippling they could be crippling
Perfect	V-ing perfect
I could have crippled you could have crippled she could have crippled we could have crippled you could have crippled they could have crippled	I could have been crippling you could have been crippling she could have been crippling we could have been crippling you could have been crippling they could have been crippling

Negation

Simple form	V-ing form
I couldn't cripple you couldn't cripple she couldn't cripple we couldn't cripple you couldn't cripple they couldn't cripple	I couldn't be crippling you couldn't be crippling she couldn't be crippling we couldn't be crippling you couldn't be crippling they couldn't be crippling
Perfect	V-ing perfect
I couldn't have crippled you couldn't have crippled she couldn't have crippled we couldn't have crippled you couldn't have crippled they couldn't have crippled	I couldn't have been crippling you couldn't have been crippling she couldn't have been crippling we couldn't have been crippling you couldn't have been crippling they couldn't have been crippling

Interrogative form

Simple form	V-ing form
could I cripple? could you cripple? could she cripple? could we cripple? could you cripple? could they cripple?	could I be crippling? could you be crippling? could she be crippling? could we be crippling? could you be crippling? could they be crippling?
Perfect	V-ing perfect
could I have crippled? could you have crippled? could she have crippled? could we have crippled? could you have crippled? could they have crippled?	could I have been crippling? could you have been crippling? could she have been crippling? could we have been crippling? could you have been crippling? could they have been crippling?

Interro-negative form

Simple form	V-ing form
couldn't I cripple? couldn't you cripple? couldn't she cripple? couldn't we cripple? couldn't you cripple? couldn't they cripple?	couldn't I be crippling? couldn't you be crippling? couldn't she be crippling? couldn't we be crippling? couldn't you be crippling? couldn't they be crippling?
Perfect	V-ing perfect
couldn't I have crippled? couldn't you have crippled? couldn't she have crippled? couldn't we have crippled? couldn't you have crippled? couldn't they have crippled?	couldn't I have been crippling? couldn't you have been crippling? couldn't she have been crippling? couldn't we have been crippling? couldn't you have been crippling? couldn't they have been crippling?