Conjugación del verbo inglés
CAN STUMBLE

Verbo regular: stumble - stumbled - stumbled

Afirmación

Forma simple	Forma con V-ing
I can stumble you can stumble she can stumble we can stumble you can stumble they can stumble	I can be stumbling you can be stumbling she can be stumbling we can be stumbling you can be stumbling they can be stumbling
Perfecto	Perfecto con V-ing
I can have stumbled you can have stumbled she can have stumbled we can have stumbled you can have stumbled they can have stumbled	I can have been stumbling you can have been stumbling she can have been stumbling we can have been stumbling you can have been stumbling they can have been stumbling

Negación

Forma simple	Forma con V-ing
I can't stumble you can't stumble she can't stumble we can't stumble you can't stumble they can't stumble	I can't be stumbling you can't be stumbling she can't be stumbling we can't be stumbling you can't be stumbling they can't be stumbling
Perfecto	Perfecto con V-ing
I can't have stumbled you can't have stumbled she can't have stumbled we can't have stumbled you can't have stumbled they can't have stumbled	I can't have been stumbling you can't have been stumbling she can't have been stumbling we can't have been stumbling you can't have been stumbling they can't have been stumbling

Forma interrogativa

Forma simple	Forma con V-ing
can I stumble? can you stumble? can she stumble? can we stumble? can you stumble? can they stumble?	can I be stumbling? can you be stumbling? can she be stumbling? can we be stumbling? can you be stumbling? can they be stumbling?
Perfecto	Perfecto con V-ing
can I have stumbled? can you have stumbled? can she have stumbled? can we have stumbled? can you have stumbled? can they have stumbled?	can I have been stumbling? can you have been stumbling? can she have been stumbling? can we have been stumbling? can you have been stumbling? can they have been stumbling?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I stumble? can't you stumble? can't she stumble? can't we stumble? can't you stumble? can't they stumble?	can't I be stumbling? can't you be stumbling? can't she be stumbling? can't we be stumbling? can't you be stumbling? can't they be stumbling?
Perfecto	Perfecto con V-ing
can't I have stumbled? can't you have stumbled? can't she have stumbled? can't we have stumbled? can't you have stumbled? can't they have stumbled?	can't I have been stumbling? can't you have been stumbling? can't she have been stumbling? can't we have been stumbling? can't you have been stumbling? can't they have been stumbling?