Conjugación del verbo inglés
CAN SNIFF

Verbo regular: sniff - sniffed - sniffed

Afirmación

Forma simple	Forma con V-ing
I can sniff you can sniff he can sniff we can sniff you can sniff they can sniff	I can be sniffing you can be sniffing he can be sniffing we can be sniffing you can be sniffing they can be sniffing
Perfecto	Perfecto con V-ing
I can have sniffed you can have sniffed he can have sniffed we can have sniffed you can have sniffed they can have sniffed	I can have been sniffing you can have been sniffing he can have been sniffing we can have been sniffing you can have been sniffing they can have been sniffing

Negación

Forma simple	Forma con V-ing
I cannot sniff you cannot sniff he cannot sniff we cannot sniff you cannot sniff they cannot sniff	I cannot be sniffing you cannot be sniffing he cannot be sniffing we cannot be sniffing you cannot be sniffing they cannot be sniffing
Perfecto	Perfecto con V-ing
I cannot have sniffed you cannot have sniffed he cannot have sniffed we cannot have sniffed you cannot have sniffed they cannot have sniffed	I cannot have been sniffing you cannot have been sniffing he cannot have been sniffing we cannot have been sniffing you cannot have been sniffing they cannot have been sniffing

Forma interrogativa

Forma simple	Forma con V-ing
can I sniff? can you sniff? can he sniff? can we sniff? can you sniff? can they sniff?	can I be sniffing? can you be sniffing? can he be sniffing? can we be sniffing? can you be sniffing? can they be sniffing?
Perfecto	Perfecto con V-ing
can I have sniffed? can you have sniffed? can he have sniffed? can we have sniffed? can you have sniffed? can they have sniffed?	can I have been sniffing? can you have been sniffing? can he have been sniffing? can we have been sniffing? can you have been sniffing? can they have been sniffing?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not sniff? can you not sniff? can he not sniff? can we not sniff? can you not sniff? can they not sniff?	can I not be sniffing? can you not be sniffing? can he not be sniffing? can we not be sniffing? can you not be sniffing? can they not be sniffing?
Perfecto	Perfecto con V-ing
can I not have sniffed? can you not have sniffed? can he not have sniffed? can we not have sniffed? can you not have sniffed? can they not have sniffed?	can I not have been sniffing? can you not have been sniffing? can he not have been sniffing? can we not have been sniffing? can you not have been sniffing? can they not have been sniffing?