English verb conjugation COULD DEVELOP

Regular verb: develop - developed - developed

Affirmation

Simple form

I could develop
you could develop
he could develop
we could develop
you could develop
they could develop

V-ing form

I could be developing
you could be developing
he could be developing
we could be developing
you could be developing
they could be developing

Perfect

I could have developed
you could have developed
he could have developed
we could have developed
you could have developed
they could have developed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I develop?
could you develop?
could he develop?
could we develop?
could you develop?
could they develop?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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