English verb conjugation COULD DOUBLE-TONGUE

Regular verb: double-tongue - double-tongued - double-tongued

Affirmation

Simple form

I could double-tongue
you could double-tongue
he could double-tongue
we could double-tongue
you could double-tongue
they could double-tongue

V-ing form

I could be double-tonguing
you could be double-tonguing
he could be double-tonguing
we could be double-tonguing
you could be double-tonguing
they could be double-tonguing

Perfect

I could have double-tongued
you could have double-tongued
he could have double-tongued
we could have double-tongued
you could have double-tongued
they could have double-tongued

V-ing perfect

I could have been double-tonguing
you could have been double-tonguing
he could have been double-tonguing
we could have been double-tonguing
you could have been double-tonguing
they could have been double-tonguing

Negation

Simple form

I couldn't double-tongue
you couldn't double-tongue
he couldn't double-tongue
we couldn't double-tongue
you couldn't double-tongue
they couldn't double-tongue

V-ing form

I couldn't be double-tonguing
you couldn't be double-tonguing
he couldn't be double-tonguing
we couldn't be double-tonguing
you couldn't be double-tonguing
they couldn't be double-tonguing

Perfect

I couldn't have double-tongued
you couldn't have double-tongued
he couldn't have double-tongued
we couldn't have double-tongued
you couldn't have double-tongued
they couldn't have double-tongued

V-ing perfect

I couldn't have been double-tonguing
you couldn't have been double-tonguing
he couldn't have been double-tonguing
we couldn't have been double-tonguing
you couldn't have been double-tonguing
they couldn't have been double-tonguing

Interrogative form

Simple form

could I double-tongue?
could you double-tongue?
could he double-tongue?
could we double-tongue?
could you double-tongue?
could they double-tongue?

V-ing form

could I be double-tonguing?
could you be double-tonguing?
could he be double-tonguing?
could we be double-tonguing?
could you be double-tonguing?
could they be double-tonguing?

Perfect

could I have double-tongued?
could you have double-tongued?
could he have double-tongued?
could we have double-tongued?
could you have double-tongued?
could they have double-tongued?

V-ing perfect

could I have been double-tonguing?
could you have been double-tonguing?
could he have been double-tonguing?
could we have been double-tonguing?
could you have been double-tonguing?
could they have been double-tonguing?

Interro-negative form

Simple form

couldn't I double-tongue?
couldn't you double-tongue?
couldn't he double-tongue?
couldn't we double-tongue?
couldn't you double-tongue?
couldn't they double-tongue?

V-ing form

couldn't I be double-tonguing?
couldn't you be double-tonguing?
couldn't he be double-tonguing?
couldn't we be double-tonguing?
couldn't you be double-tonguing?
couldn't they be double-tonguing?

Perfect

couldn't I have double-tongued?
couldn't you have double-tongued?
couldn't he have double-tongued?
couldn't we have double-tongued?
couldn't you have double-tongued?
couldn't they have double-tongued?

V-ing perfect

couldn't I have been double-tonguing?
couldn't you have been double-tonguing?
couldn't he have been double-tonguing?
couldn't we have been double-tonguing?
couldn't you have been double-tonguing?
couldn't they have been double-tonguing?

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