English verb conjugation COULD UNRIDDLE

Regular verb: unriddle - unriddled - unriddled

Affirmation

Simple form

I could unriddle
you could unriddle
he could unriddle
we could unriddle
you could unriddle
they could unriddle

V-ing form

I could be unriddling
you could be unriddling
he could be unriddling
we could be unriddling
you could be unriddling
they could be unriddling

Perfect

I could have unriddled
you could have unriddled
he could have unriddled
we could have unriddled
you could have unriddled
they could have unriddled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I unriddle?
could you unriddle?
could he unriddle?
could we unriddle?
could you unriddle?
could they unriddle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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