I could escheat you could escheat he could escheat we could escheat you could escheat they could escheat
V-ing form
I could be escheating you could be escheating he could be escheating we could be escheating you could be escheating they could be escheating
Perfect
I could have escheated you could have escheated he could have escheated we could have escheated you could have escheated they could have escheated
V-ing perfect
I could have been escheating you could have been escheating he could have been escheating we could have been escheating you could have been escheating they could have been escheating
Negation
Simple form
I could not escheat you could not escheat he could not escheat we could not escheat you could not escheat they could not escheat
V-ing form
I could not be escheating you could not be escheating he could not be escheating we could not be escheating you could not be escheating they could not be escheating
Perfect
I could not have escheated you could not have escheated he could not have escheated we could not have escheated you could not have escheated they could not have escheated
V-ing perfect
I could not have been escheating you could not have been escheating he could not have been escheating we could not have been escheating you could not have been escheating they could not have been escheating
Interrogative form
Simple form
could I escheat? could you escheat? could he escheat? could we escheat? could you escheat? could they escheat?
V-ing form
could I be escheating? could you be escheating? could he be escheating? could we be escheating? could you be escheating? could they be escheating?
Perfect
could I have escheated? could you have escheated? could he have escheated? could we have escheated? could you have escheated? could they have escheated?
V-ing perfect
could I have been escheating? could you have been escheating? could he have been escheating? could we have been escheating? could you have been escheating? could they have been escheating?
Interro-negative form
Simple form
could I not escheat? could you not escheat? could he not escheat? could we not escheat? could you not escheat? could they not escheat?
V-ing form
could I not be escheating? could you not be escheating? could he not be escheating? could we not be escheating? could you not be escheating? could they not be escheating?
Perfect
could I not have escheated? could you not have escheated? could he not have escheated? could we not have escheated? could you not have escheated? could they not have escheated?
V-ing perfect
could I not have been escheating? could you not have been escheating? could he not have been escheating? could we not have been escheating? could you not have been escheating? could they not have been escheating?