could swim
Verbo irregolare: swim - swam- swum

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could swim
you could swim
she could swim
we could swim
you could swim
they could swim 	I could be swimming
you could be swimming
she could be swimming
we could be swimming
you could be swimming
they could be swimming	I could have swum
you could have swum
she could have swum
we could have swum
you could have swum
they could have swum	I could have been swimming
you could have been swimming
she could have been swimming
we could have been swimming
you could have been swimming
they could have been swimming	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't swim
you couldn't swim
she couldn't swim
we couldn't swim
you couldn't swim
they couldn't swim 	I couldn't be swimming
you couldn't be swimming
she couldn't be swimming
we couldn't be swimming
you couldn't be swimming
they couldn't be swimming	I couldn't have swum
you couldn't have swum
she couldn't have swum
we couldn't have swum
you couldn't have swum
they couldn't have swum	I couldn't have been swimming
you couldn't have been swimming
she couldn't have been swimming
we couldn't have been swimming
you couldn't have been swimming
they couldn't have been swimming	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I swim?
could you swim?
could she swim?
could we swim?
could you swim?
could they swim? 	could I be swimming?
could you be swimming?
could she be swimming?
could we be swimming?
could you be swimming?
could they be swimming? 	could I have swum?
could you have swum?
could she have swum?
could we have swum?
could you have swum?
could they have swum? 	could I have been swimming?
could you have been swimming?
could she have been swimming?
could we have been swimming?
could you have been swimming?
could they have been swimming? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I swim?
couldn't you swim?
couldn't she swim?
couldn't we swim?
couldn't you swim?
couldn't they swim? 	couldn't I be swimming?
couldn't you be swimming?
couldn't she be swimming?
couldn't we be swimming?
couldn't you be swimming?
couldn't they be swimming? 	couldn't I have swum?
couldn't you have swum?
couldn't she have swum?
couldn't we have swum?
couldn't you have swum?
couldn't they have swum? 	couldn't I have been swimming?
couldn't you have been swimming?
couldn't she have been swimming?
couldn't we have been swimming?
couldn't you have been swimming?
couldn't they have been swimming?