could deadhead
Verbo regular: deadhead - deadheaded- deadheaded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could deadhead
you could deadhead
he could deadhead
we could deadhead
you could deadhead
they could deadhead 	I could be deadheading
you could be deadheading
he could be deadheading
we could be deadheading
you could be deadheading
they could be deadheading	I could have deadheaded
you could have deadheaded
he could have deadheaded
we could have deadheaded
you could have deadheaded
they could have deadheaded	I could have been deadheading
you could have been deadheading
he could have been deadheading
we could have been deadheading
you could have been deadheading
they could have been deadheading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't deadhead
you couldn't deadhead
he couldn't deadhead
we couldn't deadhead
you couldn't deadhead
they couldn't deadhead 	I couldn't be deadheading
you couldn't be deadheading
he couldn't be deadheading
we couldn't be deadheading
you couldn't be deadheading
they couldn't be deadheading	I couldn't have deadheaded
you couldn't have deadheaded
he couldn't have deadheaded
we couldn't have deadheaded
you couldn't have deadheaded
they couldn't have deadheaded	I couldn't have been deadheading
you couldn't have been deadheading
he couldn't have been deadheading
we couldn't have been deadheading
you couldn't have been deadheading
they couldn't have been deadheading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I deadhead?
could you deadhead?
could he deadhead?
could we deadhead?
could you deadhead?
could they deadhead? 	could I be deadheading?
could you be deadheading?
could he be deadheading?
could we be deadheading?
could you be deadheading?
could they be deadheading? 	could I have deadheaded?
could you have deadheaded?
could he have deadheaded?
could we have deadheaded?
could you have deadheaded?
could they have deadheaded? 	could I have been deadheading?
could you have been deadheading?
could he have been deadheading?
could we have been deadheading?
could you have been deadheading?
could they have been deadheading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I deadhead?
couldn't you deadhead?
couldn't he deadhead?
couldn't we deadhead?
couldn't you deadhead?
couldn't they deadhead? 	couldn't I be deadheading?
couldn't you be deadheading?
couldn't he be deadheading?
couldn't we be deadheading?
couldn't you be deadheading?
couldn't they be deadheading? 	couldn't I have deadheaded?
couldn't you have deadheaded?
couldn't he have deadheaded?
couldn't we have deadheaded?
couldn't you have deadheaded?
couldn't they have deadheaded? 	couldn't I have been deadheading?
couldn't you have been deadheading?
couldn't he have been deadheading?
couldn't we have been deadheading?
couldn't you have been deadheading?
couldn't they have been deadheading?