English verb conjugation CAN TIFF

Regular verb: tiff - tiffed - tiffed

Affirmation

Simple form

I can tiff
you can tiff
he can tiff
we can tiff
you can tiff
they can tiff

V-ing form

I can be tiffing
you can be tiffing
he can be tiffing
we can be tiffing
you can be tiffing
they can be tiffing

Perfect

I can have tiffed
you can have tiffed
he can have tiffed
we can have tiffed
you can have tiffed
they can have tiffed

V-ing perfect

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

Negation

Simple form

I can't tiff
you can't tiff
he can't tiff
we can't tiff
you can't tiff
they can't tiff

V-ing form

I can't be tiffing
you can't be tiffing
he can't be tiffing
we can't be tiffing
you can't be tiffing
they can't be tiffing

Perfect

I can't have tiffed
you can't have tiffed
he can't have tiffed
we can't have tiffed
you can't have tiffed
they can't have tiffed

V-ing perfect

I can't have been tiffing
you can't have been tiffing
he can't have been tiffing
we can't have been tiffing
you can't have been tiffing
they can't have been tiffing

Interrogative form

Simple form

can I tiff?
can you tiff?
can he tiff?
can we tiff?
can you tiff?
can they tiff?

V-ing form

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

Perfect

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

V-ing perfect

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?

Interro-negative form

Simple form

can't I tiff?
can't you tiff?
can't he tiff?
can't we tiff?
can't you tiff?
can't they tiff?

V-ing form

can't I be tiffing?
can't you be tiffing?
can't he be tiffing?
can't we be tiffing?
can't you be tiffing?
can't they be tiffing?

Perfect

can't I have tiffed?
can't you have tiffed?
can't he have tiffed?
can't we have tiffed?
can't you have tiffed?
can't they have tiffed?

V-ing perfect

can't I have been tiffing?
can't you have been tiffing?
can't he have been tiffing?
can't we have been tiffing?
can't you have been tiffing?
can't they have been tiffing?

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