could aggregate
Verbo regular: aggregate - aggregated- aggregated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could aggregate
you could aggregate
he could aggregate
we could aggregate
you could aggregate
they could aggregate 	I could be aggregating
you could be aggregating
he could be aggregating
we could be aggregating
you could be aggregating
they could be aggregating	I could have aggregated
you could have aggregated
he could have aggregated
we could have aggregated
you could have aggregated
they could have aggregated	I could have been aggregating
you could have been aggregating
he could have been aggregating
we could have been aggregating
you could have been aggregating
they could have been aggregating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't aggregate
you couldn't aggregate
he couldn't aggregate
we couldn't aggregate
you couldn't aggregate
they couldn't aggregate 	I couldn't be aggregating
you couldn't be aggregating
he couldn't be aggregating
we couldn't be aggregating
you couldn't be aggregating
they couldn't be aggregating	I couldn't have aggregated
you couldn't have aggregated
he couldn't have aggregated
we couldn't have aggregated
you couldn't have aggregated
they couldn't have aggregated	I couldn't have been aggregating
you couldn't have been aggregating
he couldn't have been aggregating
we couldn't have been aggregating
you couldn't have been aggregating
they couldn't have been aggregating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I aggregate?
could you aggregate?
could he aggregate?
could we aggregate?
could you aggregate?
could they aggregate? 	could I be aggregating?
could you be aggregating?
could he be aggregating?
could we be aggregating?
could you be aggregating?
could they be aggregating? 	could I have aggregated?
could you have aggregated?
could he have aggregated?
could we have aggregated?
could you have aggregated?
could they have aggregated? 	could I have been aggregating?
could you have been aggregating?
could he have been aggregating?
could we have been aggregating?
could you have been aggregating?
could they have been aggregating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I aggregate?
couldn't you aggregate?
couldn't he aggregate?
couldn't we aggregate?
couldn't you aggregate?
couldn't they aggregate? 	couldn't I be aggregating?
couldn't you be aggregating?
couldn't he be aggregating?
couldn't we be aggregating?
couldn't you be aggregating?
couldn't they be aggregating? 	couldn't I have aggregated?
couldn't you have aggregated?
couldn't he have aggregated?
couldn't we have aggregated?
couldn't you have aggregated?
couldn't they have aggregated? 	couldn't I have been aggregating?
couldn't you have been aggregating?
couldn't he have been aggregating?
couldn't we have been aggregating?
couldn't you have been aggregating?
couldn't they have been aggregating?