English verb conjugation COULD DIG

Irregular verb: dig - dug - dug

Affirmation

Simple form

I could dig
you could dig
he could dig
we could dig
you could dig
they could dig

V-ing form

I could be digging
you could be digging
he could be digging
we could be digging
you could be digging
they could be digging

Perfect

I could have dug
you could have dug
he could have dug
we could have dug
you could have dug
they could have dug

V-ing perfect

I could have been digging
you could have been digging
he could have been digging
we could have been digging
you could have been digging
they could have been digging

Negation

Simple form

I couldn't dig
you couldn't dig
he couldn't dig
we couldn't dig
you couldn't dig
they couldn't dig

V-ing form

I couldn't be digging
you couldn't be digging
he couldn't be digging
we couldn't be digging
you couldn't be digging
they couldn't be digging

Perfect

I couldn't have dug
you couldn't have dug
he couldn't have dug
we couldn't have dug
you couldn't have dug
they couldn't have dug

V-ing perfect

I couldn't have been digging
you couldn't have been digging
he couldn't have been digging
we couldn't have been digging
you couldn't have been digging
they couldn't have been digging

Interrogative form

Simple form

could I dig?
could you dig?
could he dig?
could we dig?
could you dig?
could they dig?

V-ing form

could I be digging?
could you be digging?
could he be digging?
could we be digging?
could you be digging?
could they be digging?

Perfect

could I have dug?
could you have dug?
could he have dug?
could we have dug?
could you have dug?
could they have dug?

V-ing perfect

could I have been digging?
could you have been digging?
could he have been digging?
could we have been digging?
could you have been digging?
could they have been digging?

Interro-negative form

Simple form

couldn't I dig?
couldn't you dig?
couldn't he dig?
couldn't we dig?
couldn't you dig?
couldn't they dig?

V-ing form

couldn't I be digging?
couldn't you be digging?
couldn't he be digging?
couldn't we be digging?
couldn't you be digging?
couldn't they be digging?

Perfect

couldn't I have dug?
couldn't you have dug?
couldn't he have dug?
couldn't we have dug?
couldn't you have dug?
couldn't they have dug?

V-ing perfect

couldn't I have been digging?
couldn't you have been digging?
couldn't he have been digging?
couldn't we have been digging?
couldn't you have been digging?
couldn't they have been digging?

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