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