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female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation COULD OIL

Regular verb: oil - oiled - oiled


Affirmation

Simple form
I could oil
you could oil
he could oil
we could oil
you could oil
they could oil
V-ing form
I could be oiling
you could be oiling
he could be oiling
we could be oiling
you could be oiling
they could be oiling
Perfect
I could have oiled
you could have oiled
he could have oiled
we could have oiled
you could have oiled
they could have oiled
V-ing perfect
I could have been oiling
you could have been oiling
he could have been oiling
we could have been oiling
you could have been oiling
they could have been oiling

Negation

Simple form
I couldn't oil
you couldn't oil
he couldn't oil
we couldn't oil
you couldn't oil
they couldn't oil
V-ing form
I couldn't be oiling
you couldn't be oiling
he couldn't be oiling
we couldn't be oiling
you couldn't be oiling
they couldn't be oiling
Perfect
I couldn't have oiled
you couldn't have oiled
he couldn't have oiled
we couldn't have oiled
you couldn't have oiled
they couldn't have oiled
V-ing perfect
I couldn't have been oiling
you couldn't have been oiling
he couldn't have been oiling
we couldn't have been oiling
you couldn't have been oiling
they couldn't have been oiling

Interrogative form

Simple form
could I oil?
could you oil?
could he oil?
could we oil?
could you oil?
could they oil?
V-ing form
could I be oiling?
could you be oiling?
could he be oiling?
could we be oiling?
could you be oiling?
could they be oiling?
Perfect
could I have oiled?
could you have oiled?
could he have oiled?
could we have oiled?
could you have oiled?
could they have oiled?
V-ing perfect
could I have been oiling?
could you have been oiling?
could he have been oiling?
could we have been oiling?
could you have been oiling?
could they have been oiling?

Interro-negative form

Simple form
couldn't I oil?
couldn't you oil?
couldn't he oil?
couldn't we oil?
couldn't you oil?
couldn't they oil?
V-ing form
couldn't I be oiling?
couldn't you be oiling?
couldn't he be oiling?
couldn't we be oiling?
couldn't you be oiling?
couldn't they be oiling?
Perfect
couldn't I have oiled?
couldn't you have oiled?
couldn't he have oiled?
couldn't we have oiled?
couldn't you have oiled?
couldn't they have oiled?
V-ing perfect
couldn't I have been oiling?
couldn't you have been oiling?
couldn't he have been oiling?
couldn't we have been oiling?
couldn't you have been oiling?
couldn't they have been oiling?