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 could not endue you could not endue he could not endue we could not endue you could not endue they could not endue	I could not be enduing you could not be enduing he could not be enduing we could not be enduing you could not be enduing they could not be enduing
Perfect	V-ing perfect
I could not have endued you could not have endued he could not have endued we could not have endued you could not have endued they could not have endued	I could not have been enduing you could not have been enduing he could not have been enduing we could not have been enduing you could not have been enduing they could not 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
could I not endue? could you not endue? could he not endue? could we not endue? could you not endue? could they not endue?	could I not be enduing? could you not be enduing? could he not be enduing? could we not be enduing? could you not be enduing? could they not be enduing?
Perfect	V-ing perfect
could I not have endued? could you not have endued? could he not have endued? could we not have endued? could you not have endued? could they not have endued?	could I not have been enduing? could you not have been enduing? could he not have been enduing? could we not have been enduing? could you not have been enduing? could they not have been enduing?