English verb conjugation
COULD INCURVATE

Regular verb: incurvate - incurvated - incurvated

Affirmation

Simple form	V-ing form
I could incurvate you could incurvate he could incurvate we could incurvate you could incurvate they could incurvate	I could be incurvating you could be incurvating he could be incurvating we could be incurvating you could be incurvating they could be incurvating
Perfect	V-ing perfect
I could have incurvated you could have incurvated he could have incurvated we could have incurvated you could have incurvated they could have incurvated	I could have been incurvating you could have been incurvating he could have been incurvating we could have been incurvating you could have been incurvating they could have been incurvating

Negation

Simple form	V-ing form
I couldn't incurvate you couldn't incurvate he couldn't incurvate we couldn't incurvate you couldn't incurvate they couldn't incurvate	I couldn't be incurvating you couldn't be incurvating he couldn't be incurvating we couldn't be incurvating you couldn't be incurvating they couldn't be incurvating
Perfect	V-ing perfect
I couldn't have incurvated you couldn't have incurvated he couldn't have incurvated we couldn't have incurvated you couldn't have incurvated they couldn't have incurvated	I couldn't have been incurvating you couldn't have been incurvating he couldn't have been incurvating we couldn't have been incurvating you couldn't have been incurvating they couldn't have been incurvating

Interrogative form

Simple form	V-ing form
could I incurvate? could you incurvate? could he incurvate? could we incurvate? could you incurvate? could they incurvate?	could I be incurvating? could you be incurvating? could he be incurvating? could we be incurvating? could you be incurvating? could they be incurvating?
Perfect	V-ing perfect
could I have incurvated? could you have incurvated? could he have incurvated? could we have incurvated? could you have incurvated? could they have incurvated?	could I have been incurvating? could you have been incurvating? could he have been incurvating? could we have been incurvating? could you have been incurvating? could they have been incurvating?

Interro-negative form

Simple form	V-ing form
couldn't I incurvate? couldn't you incurvate? couldn't he incurvate? couldn't we incurvate? couldn't you incurvate? couldn't they incurvate?	couldn't I be incurvating? couldn't you be incurvating? couldn't he be incurvating? couldn't we be incurvating? couldn't you be incurvating? couldn't they be incurvating?
Perfect	V-ing perfect
couldn't I have incurvated? couldn't you have incurvated? couldn't he have incurvated? couldn't we have incurvated? couldn't you have incurvated? couldn't they have incurvated?	couldn't I have been incurvating? couldn't you have been incurvating? couldn't he have been incurvating? couldn't we have been incurvating? couldn't you have been incurvating? couldn't they have been incurvating?