could incubate
Verbo regular: incubate - incubated- incubated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could incubate
you could incubate
he could incubate
we could incubate
you could incubate
they could incubate 	I could be incubating
you could be incubating
he could be incubating
we could be incubating
you could be incubating
they could be incubating	I could have incubated
you could have incubated
he could have incubated
we could have incubated
you could have incubated
they could have incubated	I could have been incubating
you could have been incubating
he could have been incubating
we could have been incubating
you could have been incubating
they could have been incubating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not incubate
you could not incubate
he could not incubate
we could not incubate
you could not incubate
they could not incubate 	I could not be incubating
you could not be incubating
he could not be incubating
we could not be incubating
you could not be incubating
they could not be incubating	I could not have incubated
you could not have incubated
he could not have incubated
we could not have incubated
you could not have incubated
they could not have incubated	I could not have been incubating
you could not have been incubating
he could not have been incubating
we could not have been incubating
you could not have been incubating
they could not have been incubating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I incubate?
could you incubate?
could he incubate?
could we incubate?
could you incubate?
could they incubate? 	could I be incubating?
could you be incubating?
could he be incubating?
could we be incubating?
could you be incubating?
could they be incubating? 	could I have incubated?
could you have incubated?
could he have incubated?
could we have incubated?
could you have incubated?
could they have incubated? 	could I have been incubating?
could you have been incubating?
could he have been incubating?
could we have been incubating?
could you have been incubating?
could they have been incubating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not incubate?
could you not incubate?
could he not incubate?
could we not incubate?
could you not incubate?
could they not incubate? 	could I not be incubating?
could you not be incubating?
could he not be incubating?
could we not be incubating?
could you not be incubating?
could they not be incubating? 	could I not have incubated?
could you not have incubated?
could he not have incubated?
could we not have incubated?
could you not have incubated?
could they not have incubated? 	could I not have been incubating?
could you not have been incubating?
could he not have been incubating?
could we not have been incubating?
could you not have been incubating?
could they not have been incubating?