I could probe you could probe she could probe we could probe you could probe they could probe
Forma con V-ing
I could be probing you could be probing she could be probing we could be probing you could be probing they could be probing
Perfecto
I could have probed you could have probed she could have probed we could have probed you could have probed they could have probed
Perfecto con V-ing
I could have been probing you could have been probing she could have been probing we could have been probing you could have been probing they could have been probing
Negación
Forma simple
I couldn't probe you couldn't probe she couldn't probe we couldn't probe you couldn't probe they couldn't probe
Forma con V-ing
I couldn't be probing you couldn't be probing she couldn't be probing we couldn't be probing you couldn't be probing they couldn't be probing
Perfecto
I couldn't have probed you couldn't have probed she couldn't have probed we couldn't have probed you couldn't have probed they couldn't have probed
Perfecto con V-ing
I couldn't have been probing you couldn't have been probing she couldn't have been probing we couldn't have been probing you couldn't have been probing they couldn't have been probing
Forma interrogativa
Forma simple
could I probe? could you probe? could she probe? could we probe? could you probe? could they probe?
Forma con V-ing
could I be probing? could you be probing? could she be probing? could we be probing? could you be probing? could they be probing?
Perfecto
could I have probed? could you have probed? could she have probed? could we have probed? could you have probed? could they have probed?
Perfecto con V-ing
could I have been probing? could you have been probing? could she have been probing? could we have been probing? could you have been probing? could they have been probing?
Forma interro-negativa
Forma simple
couldn't I probe? couldn't you probe? couldn't she probe? couldn't we probe? couldn't you probe? couldn't they probe?
Forma con V-ing
couldn't I be probing? couldn't you be probing? couldn't she be probing? couldn't we be probing? couldn't you be probing? couldn't they be probing?
Perfecto
couldn't I have probed? couldn't you have probed? couldn't she have probed? couldn't we have probed? couldn't you have probed? couldn't they have probed?
Perfecto con V-ing
couldn't I have been probing? couldn't you have been probing? couldn't she have been probing? couldn't we have been probing? couldn't you have been probing? couldn't they have been probing?