English verb conjugation COULD TELECONFERENCE

Regular verb: teleconference - teleconferenced - teleconferenced

Affirmation

Simple form

I could teleconference
you could teleconference
he could teleconference
we could teleconference
you could teleconference
they could teleconference

V-ing form

I could be teleconferencing
you could be teleconferencing
he could be teleconferencing
we could be teleconferencing
you could be teleconferencing
they could be teleconferencing

Perfect

I could have teleconferenced
you could have teleconferenced
he could have teleconferenced
we could have teleconferenced
you could have teleconferenced
they could have teleconferenced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I teleconference?
could you teleconference?
could he teleconference?
could we teleconference?
could you teleconference?
could they teleconference?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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