English verb conjugation
COULD MARSHAL

Regular verb: marshal - marshalled - marshalled

Affirmation

Simple form	V-ing form
I could marshal you could marshal he could marshal we could marshal you could marshal they could marshal	I could be marshalling you could be marshalling he could be marshalling we could be marshalling you could be marshalling they could be marshalling
Perfect	V-ing perfect
I could have marshalled you could have marshalled he could have marshalled we could have marshalled you could have marshalled they could have marshalled	I could have been marshalling you could have been marshalling he could have been marshalling we could have been marshalling you could have been marshalling they could have been marshalling

Negation

Simple form	V-ing form
I couldn't marshal you couldn't marshal he couldn't marshal we couldn't marshal you couldn't marshal they couldn't marshal	I couldn't be marshalling you couldn't be marshalling he couldn't be marshalling we couldn't be marshalling you couldn't be marshalling they couldn't be marshalling
Perfect	V-ing perfect
I couldn't have marshalled you couldn't have marshalled he couldn't have marshalled we couldn't have marshalled you couldn't have marshalled they couldn't have marshalled	I couldn't have been marshalling you couldn't have been marshalling he couldn't have been marshalling we couldn't have been marshalling you couldn't have been marshalling they couldn't have been marshalling

Interrogative form

Simple form	V-ing form
could I marshal? could you marshal? could he marshal? could we marshal? could you marshal? could they marshal?	could I be marshalling? could you be marshalling? could he be marshalling? could we be marshalling? could you be marshalling? could they be marshalling?
Perfect	V-ing perfect
could I have marshalled? could you have marshalled? could he have marshalled? could we have marshalled? could you have marshalled? could they have marshalled?	could I have been marshalling? could you have been marshalling? could he have been marshalling? could we have been marshalling? could you have been marshalling? could they have been marshalling?

Interro-negative form

Simple form	V-ing form
couldn't I marshal? couldn't you marshal? couldn't he marshal? couldn't we marshal? couldn't you marshal? couldn't they marshal?	couldn't I be marshalling? couldn't you be marshalling? couldn't he be marshalling? couldn't we be marshalling? couldn't you be marshalling? couldn't they be marshalling?
Perfect	V-ing perfect
couldn't I have marshalled? couldn't you have marshalled? couldn't he have marshalled? couldn't we have marshalled? couldn't you have marshalled? couldn't they have marshalled?	couldn't I have been marshalling? couldn't you have been marshalling? couldn't he have been marshalling? couldn't we have been marshalling? couldn't you have been marshalling? couldn't they have been marshalling?