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 could not install
you could not install
he could not install
we could not install
you could not install
they could not install

V-ing form

I could not be installing
you could not be installing
he could not be installing
we could not be installing
you could not be installing
they could not be installing

Perfect

I could not have installed
you could not have installed
he could not have installed
we could not have installed
you could not have installed
they could not have installed

V-ing perfect

I could not have been installing
you could not have been installing
he could not have been installing
we could not have been installing
you could not have been installing
they could not 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

could I not install?
could you not install?
could he not install?
could we not install?
could you not install?
could they not install?

V-ing form

could I not be installing?
could you not be installing?
could he not be installing?
could we not be installing?
could you not be installing?
could they not be installing?

Perfect

could I not have installed?
could you not have installed?
could he not have installed?
could we not have installed?
could you not have installed?
could they not have installed?

V-ing perfect

could I not have been installing?
could you not have been installing?
could he not have been installing?
could we not have been installing?
could you not have been installing?
could they not have been installing?