English verb conjugation COULD GRAPH

Regular verb: graph - graphed - graphed

Affirmation

Simple form

I could graph
you could graph
he could graph
we could graph
you could graph
they could graph

V-ing form

I could be graphing
you could be graphing
he could be graphing
we could be graphing
you could be graphing
they could be graphing

Perfect

I could have graphed
you could have graphed
he could have graphed
we could have graphed
you could have graphed
they could have graphed

V-ing perfect

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

Negation

Simple form

I could not graph
you could not graph
he could not graph
we could not graph
you could not graph
they could not graph

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I graph?
could you graph?
could he graph?
could we graph?
could you graph?
could they graph?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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