English verb conjugation CAN SNIFF

Regular verb: sniff - sniffed - sniffed

Affirmation

Simple form

I can sniff
you can sniff
he can sniff
we can sniff
you can sniff
they can sniff

V-ing form

I can be sniffing
you can be sniffing
he can be sniffing
we can be sniffing
you can be sniffing
they can be sniffing

Perfect

I can have sniffed
you can have sniffed
he can have sniffed
we can have sniffed
you can have sniffed
they can have sniffed

V-ing perfect

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

Negation

Simple form

I cannot sniff
you cannot sniff
he cannot sniff
we cannot sniff
you cannot sniff
they cannot sniff

V-ing form

I cannot be sniffing
you cannot be sniffing
he cannot be sniffing
we cannot be sniffing
you cannot be sniffing
they cannot be sniffing

Perfect

I cannot have sniffed
you cannot have sniffed
he cannot have sniffed
we cannot have sniffed
you cannot have sniffed
they cannot have sniffed

V-ing perfect

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

Interrogative form

Simple form

can I sniff?
can you sniff?
can he sniff?
can we sniff?
can you sniff?
can they sniff?

V-ing form

can I be sniffing?
can you be sniffing?
can he be sniffing?
can we be sniffing?
can you be sniffing?
can they be sniffing?

Perfect

can I have sniffed?
can you have sniffed?
can he have sniffed?
can we have sniffed?
can you have sniffed?
can they have sniffed?

V-ing perfect

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?

Interro-negative form

Simple form

can I not sniff?
can you not sniff?
can he not sniff?
can we not sniff?
can you not sniff?
can they not sniff?

V-ing form

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?

Perfect

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?

V-ing perfect

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?

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