could summate
Verbo regolare: summate - summated- summated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could summate
you could summate
he could summate
we could summate
you could summate
they could summate 	I could be summating
you could be summating
he could be summating
we could be summating
you could be summating
they could be summating	I could have summated
you could have summated
he could have summated
we could have summated
you could have summated
they could have summated	I could have been summating
you could have been summating
he could have been summating
we could have been summating
you could have been summating
they could have been summating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not summate
you could not summate
he could not summate
we could not summate
you could not summate
they could not summate 	I could not be summating
you could not be summating
he could not be summating
we could not be summating
you could not be summating
they could not be summating	I could not have summated
you could not have summated
he could not have summated
we could not have summated
you could not have summated
they could not have summated	I could not have been summating
you could not have been summating
he could not have been summating
we could not have been summating
you could not have been summating
they could not have been summating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I summate?
could you summate?
could he summate?
could we summate?
could you summate?
could they summate? 	could I be summating?
could you be summating?
could he be summating?
could we be summating?
could you be summating?
could they be summating? 	could I have summated?
could you have summated?
could he have summated?
could we have summated?
could you have summated?
could they have summated? 	could I have been summating?
could you have been summating?
could he have been summating?
could we have been summating?
could you have been summating?
could they have been summating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not summate?
could you not summate?
could he not summate?
could we not summate?
could you not summate?
could they not summate? 	could I not be summating?
could you not be summating?
could he not be summating?
could we not be summating?
could you not be summating?
could they not be summating? 	could I not have summated?
could you not have summated?
could he not have summated?
could we not have summated?
could you not have summated?
could they not have summated? 	could I not have been summating?
could you not have been summating?
could he not have been summating?
could we not have been summating?
could you not have been summating?
could they not have been summating?