English verb conjugation
COULD LUMINESCE

Regular verb: luminesce - luminesced - luminesced

Affirmation

Simple form	V-ing form
I could luminesce you could luminesce he could luminesce we could luminesce you could luminesce they could luminesce	I could be luminescing you could be luminescing he could be luminescing we could be luminescing you could be luminescing they could be luminescing
Perfect	V-ing perfect
I could have luminesced you could have luminesced he could have luminesced we could have luminesced you could have luminesced they could have luminesced	I could have been luminescing you could have been luminescing he could have been luminescing we could have been luminescing you could have been luminescing they could have been luminescing

Negation

Simple form	V-ing form
I couldn't luminesce you couldn't luminesce he couldn't luminesce we couldn't luminesce you couldn't luminesce they couldn't luminesce	I couldn't be luminescing you couldn't be luminescing he couldn't be luminescing we couldn't be luminescing you couldn't be luminescing they couldn't be luminescing
Perfect	V-ing perfect
I couldn't have luminesced you couldn't have luminesced he couldn't have luminesced we couldn't have luminesced you couldn't have luminesced they couldn't have luminesced	I couldn't have been luminescing you couldn't have been luminescing he couldn't have been luminescing we couldn't have been luminescing you couldn't have been luminescing they couldn't have been luminescing

Interrogative form

Simple form	V-ing form
could I luminesce? could you luminesce? could he luminesce? could we luminesce? could you luminesce? could they luminesce?	could I be luminescing? could you be luminescing? could he be luminescing? could we be luminescing? could you be luminescing? could they be luminescing?
Perfect	V-ing perfect
could I have luminesced? could you have luminesced? could he have luminesced? could we have luminesced? could you have luminesced? could they have luminesced?	could I have been luminescing? could you have been luminescing? could he have been luminescing? could we have been luminescing? could you have been luminescing? could they have been luminescing?

Interro-negative form

Simple form	V-ing form
couldn't I luminesce? couldn't you luminesce? couldn't he luminesce? couldn't we luminesce? couldn't you luminesce? couldn't they luminesce?	couldn't I be luminescing? couldn't you be luminescing? couldn't he be luminescing? couldn't we be luminescing? couldn't you be luminescing? couldn't they be luminescing?
Perfect	V-ing perfect
couldn't I have luminesced? couldn't you have luminesced? couldn't he have luminesced? couldn't we have luminesced? couldn't you have luminesced? couldn't they have luminesced?	couldn't I have been luminescing? couldn't you have been luminescing? couldn't he have been luminescing? couldn't we have been luminescing? couldn't you have been luminescing? couldn't they have been luminescing?