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 couldn't riddle
you couldn't riddle
he couldn't riddle
we couldn't riddle
you couldn't riddle
they couldn't riddle

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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