could collocate
Verbo regular: collocate - collocated- collocated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could collocate
you could collocate
he could collocate
we could collocate
you could collocate
they could collocate 	I could be collocating
you could be collocating
he could be collocating
we could be collocating
you could be collocating
they could be collocating	I could have collocated
you could have collocated
he could have collocated
we could have collocated
you could have collocated
they could have collocated	I could have been collocating
you could have been collocating
he could have been collocating
we could have been collocating
you could have been collocating
they could have been collocating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't collocate
you couldn't collocate
he couldn't collocate
we couldn't collocate
you couldn't collocate
they couldn't collocate 	I couldn't be collocating
you couldn't be collocating
he couldn't be collocating
we couldn't be collocating
you couldn't be collocating
they couldn't be collocating	I couldn't have collocated
you couldn't have collocated
he couldn't have collocated
we couldn't have collocated
you couldn't have collocated
they couldn't have collocated	I couldn't have been collocating
you couldn't have been collocating
he couldn't have been collocating
we couldn't have been collocating
you couldn't have been collocating
they couldn't have been collocating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I collocate?
could you collocate?
could he collocate?
could we collocate?
could you collocate?
could they collocate? 	could I be collocating?
could you be collocating?
could he be collocating?
could we be collocating?
could you be collocating?
could they be collocating? 	could I have collocated?
could you have collocated?
could he have collocated?
could we have collocated?
could you have collocated?
could they have collocated? 	could I have been collocating?
could you have been collocating?
could he have been collocating?
could we have been collocating?
could you have been collocating?
could they have been collocating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I collocate?
couldn't you collocate?
couldn't he collocate?
couldn't we collocate?
couldn't you collocate?
couldn't they collocate? 	couldn't I be collocating?
couldn't you be collocating?
couldn't he be collocating?
couldn't we be collocating?
couldn't you be collocating?
couldn't they be collocating? 	couldn't I have collocated?
couldn't you have collocated?
couldn't he have collocated?
couldn't we have collocated?
couldn't you have collocated?
couldn't they have collocated? 	couldn't I have been collocating?
couldn't you have been collocating?
couldn't he have been collocating?
couldn't we have been collocating?
couldn't you have been collocating?
couldn't they have been collocating?