Conjugación del verbo inglés
COULD TREE

Verbo regular: tree - treed - treed

Afirmación

Forma simple	Forma con V-ing
I could tree you could tree she could tree we could tree you could tree they could tree	I could be treeing you could be treeing she could be treeing we could be treeing you could be treeing they could be treeing
Perfecto	Perfecto con V-ing
I could have treed you could have treed she could have treed we could have treed you could have treed they could have treed	I could have been treeing you could have been treeing she could have been treeing we could have been treeing you could have been treeing they could have been treeing

Negación

Forma simple	Forma con V-ing
I couldn't tree you couldn't tree she couldn't tree we couldn't tree you couldn't tree they couldn't tree	I couldn't be treeing you couldn't be treeing she couldn't be treeing we couldn't be treeing you couldn't be treeing they couldn't be treeing
Perfecto	Perfecto con V-ing
I couldn't have treed you couldn't have treed she couldn't have treed we couldn't have treed you couldn't have treed they couldn't have treed	I couldn't have been treeing you couldn't have been treeing she couldn't have been treeing we couldn't have been treeing you couldn't have been treeing they couldn't have been treeing

Forma interrogativa

Forma simple	Forma con V-ing
could I tree? could you tree? could she tree? could we tree? could you tree? could they tree?	could I be treeing? could you be treeing? could she be treeing? could we be treeing? could you be treeing? could they be treeing?
Perfecto	Perfecto con V-ing
could I have treed? could you have treed? could she have treed? could we have treed? could you have treed? could they have treed?	could I have been treeing? could you have been treeing? could she have been treeing? could we have been treeing? could you have been treeing? could they have been treeing?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I tree? couldn't you tree? couldn't she tree? couldn't we tree? couldn't you tree? couldn't they tree?	couldn't I be treeing? couldn't you be treeing? couldn't she be treeing? couldn't we be treeing? couldn't you be treeing? couldn't they be treeing?
Perfecto	Perfecto con V-ing
couldn't I have treed? couldn't you have treed? couldn't she have treed? couldn't we have treed? couldn't you have treed? couldn't they have treed?	couldn't I have been treeing? couldn't you have been treeing? couldn't she have been treeing? couldn't we have been treeing? couldn't you have been treeing? couldn't they have been treeing?