English verb conjugation COULD FAST

Regular verb: fast - fasted - fasted

Affirmation

Simple form

I could fast
you could fast
he could fast
we could fast
you could fast
they could fast

V-ing form

I could be fasting
you could be fasting
he could be fasting
we could be fasting
you could be fasting
they could be fasting

Perfect

I could have fasted
you could have fasted
he could have fasted
we could have fasted
you could have fasted
they could have fasted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I fast?
could you fast?
could he fast?
could we fast?
could you fast?
could they fast?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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