English verb conjugation
COULD PREAPPOINT

Regular verb: preappoint - preappointed - preappointed

Affirmation

Simple form	V-ing form
I could preappoint you could preappoint he could preappoint we could preappoint you could preappoint they could preappoint	I could be preappointing you could be preappointing he could be preappointing we could be preappointing you could be preappointing they could be preappointing
Perfect	V-ing perfect
I could have preappointed you could have preappointed he could have preappointed we could have preappointed you could have preappointed they could have preappointed	I could have been preappointing you could have been preappointing he could have been preappointing we could have been preappointing you could have been preappointing they could have been preappointing

Negation

Simple form	V-ing form
I could not preappoint you could not preappoint he could not preappoint we could not preappoint you could not preappoint they could not preappoint	I could not be preappointing you could not be preappointing he could not be preappointing we could not be preappointing you could not be preappointing they could not be preappointing
Perfect	V-ing perfect
I could not have preappointed you could not have preappointed he could not have preappointed we could not have preappointed you could not have preappointed they could not have preappointed	I could not have been preappointing you could not have been preappointing he could not have been preappointing we could not have been preappointing you could not have been preappointing they could not have been preappointing

Interrogative form

Simple form	V-ing form
could I preappoint? could you preappoint? could he preappoint? could we preappoint? could you preappoint? could they preappoint?	could I be preappointing? could you be preappointing? could he be preappointing? could we be preappointing? could you be preappointing? could they be preappointing?
Perfect	V-ing perfect
could I have preappointed? could you have preappointed? could he have preappointed? could we have preappointed? could you have preappointed? could they have preappointed?	could I have been preappointing? could you have been preappointing? could he have been preappointing? could we have been preappointing? could you have been preappointing? could they have been preappointing?

Interro-negative form

Simple form	V-ing form
could I not preappoint? could you not preappoint? could he not preappoint? could we not preappoint? could you not preappoint? could they not preappoint?	could I not be preappointing? could you not be preappointing? could he not be preappointing? could we not be preappointing? could you not be preappointing? could they not be preappointing?
Perfect	V-ing perfect
could I not have preappointed? could you not have preappointed? could he not have preappointed? could we not have preappointed? could you not have preappointed? could they not have preappointed?	could I not have been preappointing? could you not have been preappointing? could he not have been preappointing? could we not have been preappointing? could you not have been preappointing? could they not have been preappointing?