I could tuck you could tuck he could tuck we could tuck you could tuck they could tuck
Forma con V-ing
I could be tucking you could be tucking he could be tucking we could be tucking you could be tucking they could be tucking
Perfecto
I could have tucked you could have tucked he could have tucked we could have tucked you could have tucked they could have tucked
Perfecto con V-ing
I could have been tucking you could have been tucking he could have been tucking we could have been tucking you could have been tucking they could have been tucking
Negación
Forma simple
I couldn't tuck you couldn't tuck he couldn't tuck we couldn't tuck you couldn't tuck they couldn't tuck
Forma con V-ing
I couldn't be tucking you couldn't be tucking he couldn't be tucking we couldn't be tucking you couldn't be tucking they couldn't be tucking
Perfecto
I couldn't have tucked you couldn't have tucked he couldn't have tucked we couldn't have tucked you couldn't have tucked they couldn't have tucked
Perfecto con V-ing
I couldn't have been tucking you couldn't have been tucking he couldn't have been tucking we couldn't have been tucking you couldn't have been tucking they couldn't have been tucking
Forma interrogativa
Forma simple
could I tuck? could you tuck? could he tuck? could we tuck? could you tuck? could they tuck?
Forma con V-ing
could I be tucking? could you be tucking? could he be tucking? could we be tucking? could you be tucking? could they be tucking?
Perfecto
could I have tucked? could you have tucked? could he have tucked? could we have tucked? could you have tucked? could they have tucked?
Perfecto con V-ing
could I have been tucking? could you have been tucking? could he have been tucking? could we have been tucking? could you have been tucking? could they have been tucking?
Forma interro-negativa
Forma simple
couldn't I tuck? couldn't you tuck? couldn't he tuck? couldn't we tuck? couldn't you tuck? couldn't they tuck?
Forma con V-ing
couldn't I be tucking? couldn't you be tucking? couldn't he be tucking? couldn't we be tucking? couldn't you be tucking? couldn't they be tucking?
Perfecto
couldn't I have tucked? couldn't you have tucked? couldn't he have tucked? couldn't we have tucked? couldn't you have tucked? couldn't they have tucked?
Perfecto con V-ing
couldn't I have been tucking? couldn't you have been tucking? couldn't he have been tucking? couldn't we have been tucking? couldn't you have been tucking? couldn't they have been tucking?