English verb conjugation COULD EXTEND

Regular verb: extend - extended - extended


Affirmation

Simple form

I could extend
you could extend
he could extend
we could extend
you could extend
they could extend

V-ing form

I could be extending
you could be extending
he could be extending
we could be extending
you could be extending
they could be extending

Perfect

I could have extended
you could have extended
he could have extended
we could have extended
you could have extended
they could have extended

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I extend?
could you extend?
could he extend?
could we extend?
could you extend?
could they extend?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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