English verb conjugation CAN SURF

Regular verb: surf - surfed - surfed

Affirmation

Simple form

I can surf
you can surf
she can surf
we can surf
you can surf
they can surf

V-ing form

I can be surfing
you can be surfing
she can be surfing
we can be surfing
you can be surfing
they can be surfing

Perfect

I can have surfed
you can have surfed
she can have surfed
we can have surfed
you can have surfed
they can have surfed

V-ing perfect

I can have been surfing
you can have been surfing
she can have been surfing
we can have been surfing
you can have been surfing
they can have been surfing

Negation

Simple form

I cannot surf
you cannot surf
she cannot surf
we cannot surf
you cannot surf
they cannot surf

V-ing form

I cannot be surfing
you cannot be surfing
she cannot be surfing
we cannot be surfing
you cannot be surfing
they cannot be surfing

Perfect

I cannot have surfed
you cannot have surfed
she cannot have surfed
we cannot have surfed
you cannot have surfed
they cannot have surfed

V-ing perfect

I cannot have been surfing
you cannot have been surfing
she cannot have been surfing
we cannot have been surfing
you cannot have been surfing
they cannot have been surfing

Interrogative form

Simple form

can I surf?
can you surf?
can she surf?
can we surf?
can you surf?
can they surf?

V-ing form

can I be surfing?
can you be surfing?
can she be surfing?
can we be surfing?
can you be surfing?
can they be surfing?

Perfect

can I have surfed?
can you have surfed?
can she have surfed?
can we have surfed?
can you have surfed?
can they have surfed?

V-ing perfect

can I have been surfing?
can you have been surfing?
can she have been surfing?
can we have been surfing?
can you have been surfing?
can they have been surfing?

Interro-negative form

Simple form

can I not surf?
can you not surf?
can she not surf?
can we not surf?
can you not surf?
can they not surf?

V-ing form

can I not be surfing?
can you not be surfing?
can she not be surfing?
can we not be surfing?
can you not be surfing?
can they not be surfing?

Perfect

can I not have surfed?
can you not have surfed?
can she not have surfed?
can we not have surfed?
can you not have surfed?
can they not have surfed?

V-ing perfect

can I not have been surfing?
can you not have been surfing?
can she not have been surfing?
can we not have been surfing?
can you not have been surfing?
can they not have been surfing?

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