English verb conjugation
COULD CRISPEN

Regular verb: crispen - crispened - crispened

Affirmation

Simple form	V-ing form
I could crispen you could crispen he could crispen we could crispen you could crispen they could crispen	I could be crispening you could be crispening he could be crispening we could be crispening you could be crispening they could be crispening
Perfect	V-ing perfect
I could have crispened you could have crispened he could have crispened we could have crispened you could have crispened they could have crispened	I could have been crispening you could have been crispening he could have been crispening we could have been crispening you could have been crispening they could have been crispening

Negation

Simple form	V-ing form
I couldn't crispen you couldn't crispen he couldn't crispen we couldn't crispen you couldn't crispen they couldn't crispen	I couldn't be crispening you couldn't be crispening he couldn't be crispening we couldn't be crispening you couldn't be crispening they couldn't be crispening
Perfect	V-ing perfect
I couldn't have crispened you couldn't have crispened he couldn't have crispened we couldn't have crispened you couldn't have crispened they couldn't have crispened	I couldn't have been crispening you couldn't have been crispening he couldn't have been crispening we couldn't have been crispening you couldn't have been crispening they couldn't have been crispening

Interrogative form

Simple form	V-ing form
could I crispen? could you crispen? could he crispen? could we crispen? could you crispen? could they crispen?	could I be crispening? could you be crispening? could he be crispening? could we be crispening? could you be crispening? could they be crispening?
Perfect	V-ing perfect
could I have crispened? could you have crispened? could he have crispened? could we have crispened? could you have crispened? could they have crispened?	could I have been crispening? could you have been crispening? could he have been crispening? could we have been crispening? could you have been crispening? could they have been crispening?

Interro-negative form

Simple form	V-ing form
couldn't I crispen? couldn't you crispen? couldn't he crispen? couldn't we crispen? couldn't you crispen? couldn't they crispen?	couldn't I be crispening? couldn't you be crispening? couldn't he be crispening? couldn't we be crispening? couldn't you be crispening? couldn't they be crispening?
Perfect	V-ing perfect
couldn't I have crispened? couldn't you have crispened? couldn't he have crispened? couldn't we have crispened? couldn't you have crispened? couldn't they have crispened?	couldn't I have been crispening? couldn't you have been crispening? couldn't he have been crispening? couldn't we have been crispening? couldn't you have been crispening? couldn't they have been crispening?