I could welcome you could welcome he could welcome we could welcome you could welcome they could welcome
Forma con V-ing
I could be welcoming you could be welcoming he could be welcoming we could be welcoming you could be welcoming they could be welcoming
Perfecto
I could have welcomed you could have welcomed he could have welcomed we could have welcomed you could have welcomed they could have welcomed
Perfecto con V-ing
I could have been welcoming you could have been welcoming he could have been welcoming we could have been welcoming you could have been welcoming they could have been welcoming
Negación
Forma simple
I could not welcome you could not welcome he could not welcome we could not welcome you could not welcome they could not welcome
Forma con V-ing
I could not be welcoming you could not be welcoming he could not be welcoming we could not be welcoming you could not be welcoming they could not be welcoming
Perfecto
I could not have welcomed you could not have welcomed he could not have welcomed we could not have welcomed you could not have welcomed they could not have welcomed
Perfecto con V-ing
I could not have been welcoming you could not have been welcoming he could not have been welcoming we could not have been welcoming you could not have been welcoming they could not have been welcoming
Forma interrogativa
Forma simple
could I welcome? could you welcome? could he welcome? could we welcome? could you welcome? could they welcome?
Forma con V-ing
could I be welcoming? could you be welcoming? could he be welcoming? could we be welcoming? could you be welcoming? could they be welcoming?
Perfecto
could I have welcomed? could you have welcomed? could he have welcomed? could we have welcomed? could you have welcomed? could they have welcomed?
Perfecto con V-ing
could I have been welcoming? could you have been welcoming? could he have been welcoming? could we have been welcoming? could you have been welcoming? could they have been welcoming?
Forma interro-negativa
Forma simple
could I not welcome? could you not welcome? could he not welcome? could we not welcome? could you not welcome? could they not welcome?
Forma con V-ing
could I not be welcoming? could you not be welcoming? could he not be welcoming? could we not be welcoming? could you not be welcoming? could they not be welcoming?
Perfecto
could I not have welcomed? could you not have welcomed? could he not have welcomed? could we not have welcomed? could you not have welcomed? could they not have welcomed?
Perfecto con V-ing
could I not have been welcoming? could you not have been welcoming? could he not have been welcoming? could we not have been welcoming? could you not have been welcoming? could they not have been welcoming?