could neck
Verbo regular: neck - necked- necked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could neck
you could neck
he could neck
we could neck
you could neck
they could neck 	I could be necking
you could be necking
he could be necking
we could be necking
you could be necking
they could be necking	I could have necked
you could have necked
he could have necked
we could have necked
you could have necked
they could have necked	I could have been necking
you could have been necking
he could have been necking
we could have been necking
you could have been necking
they could have been necking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't neck
you couldn't neck
he couldn't neck
we couldn't neck
you couldn't neck
they couldn't neck 	I couldn't be necking
you couldn't be necking
he couldn't be necking
we couldn't be necking
you couldn't be necking
they couldn't be necking	I couldn't have necked
you couldn't have necked
he couldn't have necked
we couldn't have necked
you couldn't have necked
they couldn't have necked	I couldn't have been necking
you couldn't have been necking
he couldn't have been necking
we couldn't have been necking
you couldn't have been necking
they couldn't have been necking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I neck?
could you neck?
could he neck?
could we neck?
could you neck?
could they neck? 	could I be necking?
could you be necking?
could he be necking?
could we be necking?
could you be necking?
could they be necking? 	could I have necked?
could you have necked?
could he have necked?
could we have necked?
could you have necked?
could they have necked? 	could I have been necking?
could you have been necking?
could he have been necking?
could we have been necking?
could you have been necking?
could they have been necking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I neck?
couldn't you neck?
couldn't he neck?
couldn't we neck?
couldn't you neck?
couldn't they neck? 	couldn't I be necking?
couldn't you be necking?
couldn't he be necking?
couldn't we be necking?
couldn't you be necking?
couldn't they be necking? 	couldn't I have necked?
couldn't you have necked?
couldn't he have necked?
couldn't we have necked?
couldn't you have necked?
couldn't they have necked? 	couldn't I have been necking?
couldn't you have been necking?
couldn't he have been necking?
couldn't we have been necking?
couldn't you have been necking?
couldn't they have been necking?