Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I could laughter you could laughter he could laughter we could laughter you could laughter they could laughter
Forma com V-ing
I could be laughtering you could be laughtering he could be laughtering we could be laughtering you could be laughtering they could be laughtering
Perfeito
I could have laughtered you could have laughtered he could have laughtered we could have laughtered you could have laughtered they could have laughtered
Perfeito com V-ing
I could have been laughtering you could have been laughtering he could have been laughtering we could have been laughtering you could have been laughtering they could have been laughtering
Negação
Forma simple
I couldn't laughter you couldn't laughter he couldn't laughter we couldn't laughter you couldn't laughter they couldn't laughter
Forma com V-ing
I couldn't be laughtering you couldn't be laughtering he couldn't be laughtering we couldn't be laughtering you couldn't be laughtering they couldn't be laughtering
Perfeito
I couldn't have laughtered you couldn't have laughtered he couldn't have laughtered we couldn't have laughtered you couldn't have laughtered they couldn't have laughtered
Perfeito com V-ing
I couldn't have been laughtering you couldn't have been laughtering he couldn't have been laughtering we couldn't have been laughtering you couldn't have been laughtering they couldn't have been laughtering
Forma interrogativa
Forma simple
could I laughter? could you laughter? could he laughter? could we laughter? could you laughter? could they laughter?
Forma com V-ing
could I be laughtering? could you be laughtering? could he be laughtering? could we be laughtering? could you be laughtering? could they be laughtering?
Perfeito
could I have laughtered? could you have laughtered? could he have laughtered? could we have laughtered? could you have laughtered? could they have laughtered?
Perfeito com V-ing
could I have been laughtering? could you have been laughtering? could he have been laughtering? could we have been laughtering? could you have been laughtering? could they have been laughtering?
Forma interro-Negação
Forma simple
couldn't I laughter? couldn't you laughter? couldn't he laughter? couldn't we laughter? couldn't you laughter? couldn't they laughter?
Forma com V-ing
couldn't I be laughtering? couldn't you be laughtering? couldn't he be laughtering? couldn't we be laughtering? couldn't you be laughtering? couldn't they be laughtering?
Perfeito
couldn't I have laughtered? couldn't you have laughtered? couldn't he have laughtered? couldn't we have laughtered? couldn't you have laughtered? couldn't they have laughtered?
Perfeito com V-ing
couldn't I have been laughtering? couldn't you have been laughtering? couldn't he have been laughtering? couldn't we have been laughtering? couldn't you have been laughtering? couldn't they have been laughtering?