English verb conjugation COULD INSTALL

Regular verb: install - installed - installed

Affirmation

Simple form

I could install
you could install
he could install
we could install
you could install
they could install

V-ing form

I could be installing
you could be installing
he could be installing
we could be installing
you could be installing
they could be installing

Perfect

I could have installed
you could have installed
he could have installed
we could have installed
you could have installed
they could have installed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I install?
could you install?
could he install?
could we install?
could you install?
could they install?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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