Conjugación del verbo inglés
CAN TIFF

Verbo regular: tiff - tiffed - tiffed

Afirmación

Forma simple	Forma con V-ing
I can tiff you can tiff he can tiff we can tiff you can tiff they can tiff	I can be tiffing you can be tiffing he can be tiffing we can be tiffing you can be tiffing they can be tiffing
Perfecto	Perfecto con V-ing
I can have tiffed you can have tiffed he can have tiffed we can have tiffed you can have tiffed they can have tiffed	I can have been tiffing you can have been tiffing he can have been tiffing we can have been tiffing you can have been tiffing they can have been tiffing

Negación

Forma simple	Forma con V-ing
I cannot tiff you cannot tiff he cannot tiff we cannot tiff you cannot tiff they cannot tiff	I cannot be tiffing you cannot be tiffing he cannot be tiffing we cannot be tiffing you cannot be tiffing they cannot be tiffing
Perfecto	Perfecto con V-ing
I cannot have tiffed you cannot have tiffed he cannot have tiffed we cannot have tiffed you cannot have tiffed they cannot have tiffed	I cannot have been tiffing you cannot have been tiffing he cannot have been tiffing we cannot have been tiffing you cannot have been tiffing they cannot have been tiffing

Forma interrogativa

Forma simple	Forma con V-ing
can I tiff? can you tiff? can he tiff? can we tiff? can you tiff? can they tiff?	can I be tiffing? can you be tiffing? can he be tiffing? can we be tiffing? can you be tiffing? can they be tiffing?
Perfecto	Perfecto con V-ing
can I have tiffed? can you have tiffed? can he have tiffed? can we have tiffed? can you have tiffed? can they have tiffed?	can I have been tiffing? can you have been tiffing? can he have been tiffing? can we have been tiffing? can you have been tiffing? can they have been tiffing?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not tiff? can you not tiff? can he not tiff? can we not tiff? can you not tiff? can they not tiff?	can I not be tiffing? can you not be tiffing? can he not be tiffing? can we not be tiffing? can you not be tiffing? can they not be tiffing?
Perfecto	Perfecto con V-ing
can I not have tiffed? can you not have tiffed? can he not have tiffed? can we not have tiffed? can you not have tiffed? can they not have tiffed?	can I not have been tiffing? can you not have been tiffing? can he not have been tiffing? can we not have been tiffing? can you not have been tiffing? can they not have been tiffing?