English verb conjugation COULD PURL

Regular verb: purl - purled - purled

Affirmation

Simple form

I could purl
you could purl
he could purl
we could purl
you could purl
they could purl

V-ing form

I could be purling
you could be purling
he could be purling
we could be purling
you could be purling
they could be purling

Perfect

I could have purled
you could have purled
he could have purled
we could have purled
you could have purled
they could have purled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I purl?
could you purl?
could he purl?
could we purl?
could you purl?
could they purl?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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