Conjugación del verbo inglés
CAN RETRACE

Verbo regular: retrace - retraced - retraced

Afirmación

Forma simple	Forma con V-ing
I can retrace you can retrace he can retrace we can retrace you can retrace they can retrace	I can be retracing you can be retracing he can be retracing we can be retracing you can be retracing they can be retracing
Perfecto	Perfecto con V-ing
I can have retraced you can have retraced he can have retraced we can have retraced you can have retraced they can have retraced	I can have been retracing you can have been retracing he can have been retracing we can have been retracing you can have been retracing they can have been retracing

Negación

Forma simple	Forma con V-ing
I cannot retrace you cannot retrace he cannot retrace we cannot retrace you cannot retrace they cannot retrace	I cannot be retracing you cannot be retracing he cannot be retracing we cannot be retracing you cannot be retracing they cannot be retracing
Perfecto	Perfecto con V-ing
I cannot have retraced you cannot have retraced he cannot have retraced we cannot have retraced you cannot have retraced they cannot have retraced	I cannot have been retracing you cannot have been retracing he cannot have been retracing we cannot have been retracing you cannot have been retracing they cannot have been retracing

Forma interrogativa

Forma simple	Forma con V-ing
can I retrace? can you retrace? can he retrace? can we retrace? can you retrace? can they retrace?	can I be retracing? can you be retracing? can he be retracing? can we be retracing? can you be retracing? can they be retracing?
Perfecto	Perfecto con V-ing
can I have retraced? can you have retraced? can he have retraced? can we have retraced? can you have retraced? can they have retraced?	can I have been retracing? can you have been retracing? can he have been retracing? can we have been retracing? can you have been retracing? can they have been retracing?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not retrace? can you not retrace? can he not retrace? can we not retrace? can you not retrace? can they not retrace?	can I not be retracing? can you not be retracing? can he not be retracing? can we not be retracing? can you not be retracing? can they not be retracing?
Perfecto	Perfecto con V-ing
can I not have retraced? can you not have retraced? can he not have retraced? can we not have retraced? can you not have retraced? can they not have retraced?	can I not have been retracing? can you not have been retracing? can he not have been retracing? can we not have been retracing? can you not have been retracing? can they not have been retracing?