I can butterfly you can butterfly she can butterfly we can butterfly you can butterfly they can butterfly
Forme en V-ing
I can be butterflying you can be butterflying she can be butterflying we can be butterflying you can be butterflying they can be butterflying
Perfect
I can have butterflied you can have butterflied she can have butterflied we can have butterflied you can have butterflied they can have butterflied
Perfect en V-ing
I can have been butterflying you can have been butterflying she can have been butterflying we can have been butterflying you can have been butterflying they can have been butterflying
Négation
Forme simple
I cannot butterfly you cannot butterfly she cannot butterfly we cannot butterfly you cannot butterfly they cannot butterfly
Forme en V-ing
I cannot be butterflying you cannot be butterflying she cannot be butterflying we cannot be butterflying you cannot be butterflying they cannot be butterflying
Perfect
I cannot have butterflied you cannot have butterflied she cannot have butterflied we cannot have butterflied you cannot have butterflied they cannot have butterflied
Perfect en V-ing
I cannot have been butterflying you cannot have been butterflying she cannot have been butterflying we cannot have been butterflying you cannot have been butterflying they cannot have been butterflying
Forme interrogative
Forme simple
can I butterfly? can you butterfly? can she butterfly? can we butterfly? can you butterfly? can they butterfly?
Forme en V-ing
can I be butterflying? can you be butterflying? can she be butterflying? can we be butterflying? can you be butterflying? can they be butterflying?
Perfect
can I have butterflied? can you have butterflied? can she have butterflied? can we have butterflied? can you have butterflied? can they have butterflied?
Perfect en V-ing
can I have been butterflying? can you have been butterflying? can she have been butterflying? can we have been butterflying? can you have been butterflying? can they have been butterflying?
Forme interro-négative
Forme simple
can I not butterfly? can you not butterfly? can she not butterfly? can we not butterfly? can you not butterfly? can they not butterfly?
Forme en V-ing
can I not be butterflying? can you not be butterflying? can she not be butterflying? can we not be butterflying? can you not be butterflying? can they not be butterflying?
Perfect
can I not have butterflied? can you not have butterflied? can she not have butterflied? can we not have butterflied? can you not have butterflied? can they not have butterflied?
Perfect en V-ing
can I not have been butterflying? can you not have been butterflying? can she not have been butterflying? can we not have been butterflying? can you not have been butterflying? can they not have been butterflying?