I could shoo you could shoo he could shoo we could shoo you could shoo they could shoo
V-ing form
I could be shooing you could be shooing he could be shooing we could be shooing you could be shooing they could be shooing
Perfect
I could have shooed you could have shooed he could have shooed we could have shooed you could have shooed they could have shooed
V-ing perfect
I could have been shooing you could have been shooing he could have been shooing we could have been shooing you could have been shooing they could have been shooing
Negation
Simple form
I could not shoo you could not shoo he could not shoo we could not shoo you could not shoo they could not shoo
V-ing form
I could not be shooing you could not be shooing he could not be shooing we could not be shooing you could not be shooing they could not be shooing
Perfect
I could not have shooed you could not have shooed he could not have shooed we could not have shooed you could not have shooed they could not have shooed
V-ing perfect
I could not have been shooing you could not have been shooing he could not have been shooing we could not have been shooing you could not have been shooing they could not have been shooing
Interrogative form
Simple form
could I shoo? could you shoo? could he shoo? could we shoo? could you shoo? could they shoo?
V-ing form
could I be shooing? could you be shooing? could he be shooing? could we be shooing? could you be shooing? could they be shooing?
Perfect
could I have shooed? could you have shooed? could he have shooed? could we have shooed? could you have shooed? could they have shooed?
V-ing perfect
could I have been shooing? could you have been shooing? could he have been shooing? could we have been shooing? could you have been shooing? could they have been shooing?
Interro-negative form
Simple form
could I not shoo? could you not shoo? could he not shoo? could we not shoo? could you not shoo? could they not shoo?
V-ing form
could I not be shooing? could you not be shooing? could he not be shooing? could we not be shooing? could you not be shooing? could they not be shooing?
Perfect
could I not have shooed? could you not have shooed? could he not have shooed? could we not have shooed? could you not have shooed? could they not have shooed?
V-ing perfect
could I not have been shooing? could you not have been shooing? could he not have been shooing? could we not have been shooing? could you not have been shooing? could they not have been shooing?