could approximate
Verbo regolare: approximate - approximated- approximated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could approximate
you could approximate
he could approximate
we could approximate
you could approximate
they could approximate 	I could be approximating
you could be approximating
he could be approximating
we could be approximating
you could be approximating
they could be approximating	I could have approximated
you could have approximated
he could have approximated
we could have approximated
you could have approximated
they could have approximated	I could have been approximating
you could have been approximating
he could have been approximating
we could have been approximating
you could have been approximating
they could have been approximating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't approximate
you couldn't approximate
he couldn't approximate
we couldn't approximate
you couldn't approximate
they couldn't approximate 	I couldn't be approximating
you couldn't be approximating
he couldn't be approximating
we couldn't be approximating
you couldn't be approximating
they couldn't be approximating	I couldn't have approximated
you couldn't have approximated
he couldn't have approximated
we couldn't have approximated
you couldn't have approximated
they couldn't have approximated	I couldn't have been approximating
you couldn't have been approximating
he couldn't have been approximating
we couldn't have been approximating
you couldn't have been approximating
they couldn't have been approximating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I approximate?
could you approximate?
could he approximate?
could we approximate?
could you approximate?
could they approximate? 	could I be approximating?
could you be approximating?
could he be approximating?
could we be approximating?
could you be approximating?
could they be approximating? 	could I have approximated?
could you have approximated?
could he have approximated?
could we have approximated?
could you have approximated?
could they have approximated? 	could I have been approximating?
could you have been approximating?
could he have been approximating?
could we have been approximating?
could you have been approximating?
could they have been approximating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I approximate?
couldn't you approximate?
couldn't he approximate?
couldn't we approximate?
couldn't you approximate?
couldn't they approximate? 	couldn't I be approximating?
couldn't you be approximating?
couldn't he be approximating?
couldn't we be approximating?
couldn't you be approximating?
couldn't they be approximating? 	couldn't I have approximated?
couldn't you have approximated?
couldn't he have approximated?
couldn't we have approximated?
couldn't you have approximated?
couldn't they have approximated? 	couldn't I have been approximating?
couldn't you have been approximating?
couldn't he have been approximating?
couldn't we have been approximating?
couldn't you have been approximating?
couldn't they have been approximating?