English verb conjugation
COULD ENDUE

Regular verb: endue - endued - endued

Affirmation

Simple form	V-ing form
I could endue you could endue he could endue we could endue you could endue they could endue	I could be enduing you could be enduing he could be enduing we could be enduing you could be enduing they could be enduing
Perfect	V-ing perfect
I could have endued you could have endued he could have endued we could have endued you could have endued they could have endued	I could have been enduing you could have been enduing he could have been enduing we could have been enduing you could have been enduing they could have been enduing

Negation

Simple form	V-ing form
I couldn't endue you couldn't endue he couldn't endue we couldn't endue you couldn't endue they couldn't endue	I couldn't be enduing you couldn't be enduing he couldn't be enduing we couldn't be enduing you couldn't be enduing they couldn't be enduing
Perfect	V-ing perfect
I couldn't have endued you couldn't have endued he couldn't have endued we couldn't have endued you couldn't have endued they couldn't have endued	I couldn't have been enduing you couldn't have been enduing he couldn't have been enduing we couldn't have been enduing you couldn't have been enduing they couldn't have been enduing

Interrogative form

Simple form	V-ing form
could I endue? could you endue? could he endue? could we endue? could you endue? could they endue?	could I be enduing? could you be enduing? could he be enduing? could we be enduing? could you be enduing? could they be enduing?
Perfect	V-ing perfect
could I have endued? could you have endued? could he have endued? could we have endued? could you have endued? could they have endued?	could I have been enduing? could you have been enduing? could he have been enduing? could we have been enduing? could you have been enduing? could they have been enduing?

Interro-negative form

Simple form	V-ing form
couldn't I endue? couldn't you endue? couldn't he endue? couldn't we endue? couldn't you endue? couldn't they endue?	couldn't I be enduing? couldn't you be enduing? couldn't he be enduing? couldn't we be enduing? couldn't you be enduing? couldn't they be enduing?
Perfect	V-ing perfect
couldn't I have endued? couldn't you have endued? couldn't he have endued? couldn't we have endued? couldn't you have endued? couldn't they have endued?	couldn't I have been enduing? couldn't you have been enduing? couldn't he have been enduing? couldn't we have been enduing? couldn't you have been enduing? couldn't they have been enduing?