English verb conjugation COULD RIDDLE

Regular verb: riddle - riddled - riddled

Affirmation

Simple form

I could riddle
you could riddle
he could riddle
we could riddle
you could riddle
they could riddle

V-ing form

I could be riddling
you could be riddling
he could be riddling
we could be riddling
you could be riddling
they could be riddling

Perfect

I could have riddled
you could have riddled
he could have riddled
we could have riddled
you could have riddled
they could have riddled

V-ing perfect

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

Negation

Simple form

I could not riddle
you could not riddle
he could not riddle
we could not riddle
you could not riddle
they could not riddle

V-ing form

I could not be riddling
you could not be riddling
he could not be riddling
we could not be riddling
you could not be riddling
they could not be riddling

Perfect

I could not have riddled
you could not have riddled
he could not have riddled
we could not have riddled
you could not have riddled
they could not have riddled

V-ing perfect

I could not have been riddling
you could not have been riddling
he could not have been riddling
we could not have been riddling
you could not have been riddling
they could not have been riddling

Interrogative form

Simple form

could I riddle?
could you riddle?
could he riddle?
could we riddle?
could you riddle?
could they riddle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not riddle?
could you not riddle?
could he not riddle?
could we not riddle?
could you not riddle?
could they not riddle?

V-ing form

could I not be riddling?
could you not be riddling?
could he not be riddling?
could we not be riddling?
could you not be riddling?
could they not be riddling?

Perfect

could I not have riddled?
could you not have riddled?
could he not have riddled?
could we not have riddled?
could you not have riddled?
could they not have riddled?

V-ing perfect

could I not have been riddling?
could you not have been riddling?
could he not have been riddling?
could we not have been riddling?
could you not have been riddling?
could they not have been riddling?

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