English verb conjugation
COULD DIN

Regular verb: din - dinned - dinned

Affirmation

Simple form	V-ing form
I could din you could din he could din we could din you could din they could din	I could be dinning you could be dinning he could be dinning we could be dinning you could be dinning they could be dinning
Perfect	V-ing perfect
I could have dinned you could have dinned he could have dinned we could have dinned you could have dinned they could have dinned	I could have been dinning you could have been dinning he could have been dinning we could have been dinning you could have been dinning they could have been dinning

Negation

Simple form	V-ing form
I could not din you could not din he could not din we could not din you could not din they could not din	I could not be dinning you could not be dinning he could not be dinning we could not be dinning you could not be dinning they could not be dinning
Perfect	V-ing perfect
I could not have dinned you could not have dinned he could not have dinned we could not have dinned you could not have dinned they could not have dinned	I could not have been dinning you could not have been dinning he could not have been dinning we could not have been dinning you could not have been dinning they could not have been dinning

Interrogative form

Simple form	V-ing form
could I din? could you din? could he din? could we din? could you din? could they din?	could I be dinning? could you be dinning? could he be dinning? could we be dinning? could you be dinning? could they be dinning?
Perfect	V-ing perfect
could I have dinned? could you have dinned? could he have dinned? could we have dinned? could you have dinned? could they have dinned?	could I have been dinning? could you have been dinning? could he have been dinning? could we have been dinning? could you have been dinning? could they have been dinning?

Interro-negative form

Simple form	V-ing form
could I not din? could you not din? could he not din? could we not din? could you not din? could they not din?	could I not be dinning? could you not be dinning? could he not be dinning? could we not be dinning? could you not be dinning? could they not be dinning?
Perfect	V-ing perfect
could I not have dinned? could you not have dinned? could he not have dinned? could we not have dinned? could you not have dinned? could they not have dinned?	could I not have been dinning? could you not have been dinning? could he not have been dinning? could we not have been dinning? could you not have been dinning? could they not have been dinning?