Conjugación del verbo inglés
CAN VARY

Verbo regular: vary - varied - varied

Afirmación

Forma simple	Forma con V-ing
I can vary you can vary he can vary we can vary you can vary they can vary	I can be varying you can be varying he can be varying we can be varying you can be varying they can be varying
Perfecto	Perfecto con V-ing
I can have varied you can have varied he can have varied we can have varied you can have varied they can have varied	I can have been varying you can have been varying he can have been varying we can have been varying you can have been varying they can have been varying

Negación

Forma simple	Forma con V-ing
I cannot vary you cannot vary he cannot vary we cannot vary you cannot vary they cannot vary	I cannot be varying you cannot be varying he cannot be varying we cannot be varying you cannot be varying they cannot be varying
Perfecto	Perfecto con V-ing
I cannot have varied you cannot have varied he cannot have varied we cannot have varied you cannot have varied they cannot have varied	I cannot have been varying you cannot have been varying he cannot have been varying we cannot have been varying you cannot have been varying they cannot have been varying

Forma interrogativa

Forma simple	Forma con V-ing
can I vary? can you vary? can he vary? can we vary? can you vary? can they vary?	can I be varying? can you be varying? can he be varying? can we be varying? can you be varying? can they be varying?
Perfecto	Perfecto con V-ing
can I have varied? can you have varied? can he have varied? can we have varied? can you have varied? can they have varied?	can I have been varying? can you have been varying? can he have been varying? can we have been varying? can you have been varying? can they have been varying?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not vary? can you not vary? can he not vary? can we not vary? can you not vary? can they not vary?	can I not be varying? can you not be varying? can he not be varying? can we not be varying? can you not be varying? can they not be varying?
Perfecto	Perfecto con V-ing
can I not have varied? can you not have varied? can he not have varied? can we not have varied? can you not have varied? can they not have varied?	can I not have been varying? can you not have been varying? can he not have been varying? can we not have been varying? can you not have been varying? can they not have been varying?