Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I could lengthen lengthen you could lengthen lengthen she could lengthen lengthen we could lengthen lengthen you could lengthen lengthen they could lengthen lengthen
Forme en V-ing
I could be lengthen lengthening you could be lengthen lengthening she could be lengthen lengthening we could be lengthen lengthening you could be lengthen lengthening they could be lengthen lengthening
Perfect
I could have lengthen lengthened you could have lengthen lengthened she could have lengthen lengthened we could have lengthen lengthened you could have lengthen lengthened they could have lengthen lengthened
Perfect en V-ing
I could have been lengthen lengthening you could have been lengthen lengthening she could have been lengthen lengthening we could have been lengthen lengthening you could have been lengthen lengthening they could have been lengthen lengthening
Négation
Forme simple
I could not lengthen lengthen you could not lengthen lengthen she could not lengthen lengthen we could not lengthen lengthen you could not lengthen lengthen they could not lengthen lengthen
Forme en V-ing
I could not be lengthen lengthening you could not be lengthen lengthening she could not be lengthen lengthening we could not be lengthen lengthening you could not be lengthen lengthening they could not be lengthen lengthening
Perfect
I could not have lengthen lengthened you could not have lengthen lengthened she could not have lengthen lengthened we could not have lengthen lengthened you could not have lengthen lengthened they could not have lengthen lengthened
Perfect en V-ing
I could not have been lengthen lengthening you could not have been lengthen lengthening she could not have been lengthen lengthening we could not have been lengthen lengthening you could not have been lengthen lengthening they could not have been lengthen lengthening
Forme interrogative
Forme simple
could I lengthen lengthen? could you lengthen lengthen? could she lengthen lengthen? could we lengthen lengthen? could you lengthen lengthen? could they lengthen lengthen?
Forme en V-ing
could I be lengthen lengthening? could you be lengthen lengthening? could she be lengthen lengthening? could we be lengthen lengthening? could you be lengthen lengthening? could they be lengthen lengthening?
Perfect
could I have lengthen lengthened? could you have lengthen lengthened? could she have lengthen lengthened? could we have lengthen lengthened? could you have lengthen lengthened? could they have lengthen lengthened?
Perfect en V-ing
could I have been lengthen lengthening? could you have been lengthen lengthening? could she have been lengthen lengthening? could we have been lengthen lengthening? could you have been lengthen lengthening? could they have been lengthen lengthening?
Forme interro-négative
Forme simple
could I not lengthen lengthen? could you not lengthen lengthen? could she not lengthen lengthen? could we not lengthen lengthen? could you not lengthen lengthen? could they not lengthen lengthen?
Forme en V-ing
could I not be lengthen lengthening? could you not be lengthen lengthening? could she not be lengthen lengthening? could we not be lengthen lengthening? could you not be lengthen lengthening? could they not be lengthen lengthening?
Perfect
could I not have lengthen lengthened? could you not have lengthen lengthened? could she not have lengthen lengthened? could we not have lengthen lengthened? could you not have lengthen lengthened? could they not have lengthen lengthened?
Perfect en V-ing
could I not have been lengthen lengthening? could you not have been lengthen lengthening? could she not have been lengthen lengthening? could we not have been lengthen lengthening? could you not have been lengthen lengthening? could they not have been lengthen lengthening?