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