could preannounce
Regular verb: preannounce - preannounced- preannounced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could preannounce
you could preannounce
he could preannounce
we could preannounce
you could preannounce
they could preannounce 	I could be preannouncing
you could be preannouncing
he could be preannouncing
we could be preannouncing
you could be preannouncing
they could be preannouncing	I could have preannounced
you could have preannounced
he could have preannounced
we could have preannounced
you could have preannounced
they could have preannounced	I could have been preannouncing
you could have been preannouncing
he could have been preannouncing
we could have been preannouncing
you could have been preannouncing
they could have been preannouncing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not preannounce
you could not preannounce
he could not preannounce
we could not preannounce
you could not preannounce
they could not preannounce 	I could not be preannouncing
you could not be preannouncing
he could not be preannouncing
we could not be preannouncing
you could not be preannouncing
they could not be preannouncing	I could not have preannounced
you could not have preannounced
he could not have preannounced
we could not have preannounced
you could not have preannounced
they could not have preannounced	I could not have been preannouncing
you could not have been preannouncing
he could not have been preannouncing
we could not have been preannouncing
you could not have been preannouncing
they could not have been preannouncing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I preannounce?
could you preannounce?
could he preannounce?
could we preannounce?
could you preannounce?
could they preannounce? 	could I be preannouncing?
could you be preannouncing?
could he be preannouncing?
could we be preannouncing?
could you be preannouncing?
could they be preannouncing? 	could I have preannounced?
could you have preannounced?
could he have preannounced?
could we have preannounced?
could you have preannounced?
could they have preannounced? 	could I have been preannouncing?
could you have been preannouncing?
could he have been preannouncing?
could we have been preannouncing?
could you have been preannouncing?
could they have been preannouncing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not preannounce?
could you not preannounce?
could he not preannounce?
could we not preannounce?
could you not preannounce?
could they not preannounce? 	could I not be preannouncing?
could you not be preannouncing?
could he not be preannouncing?
could we not be preannouncing?
could you not be preannouncing?
could they not be preannouncing? 	could I not have preannounced?
could you not have preannounced?
could he not have preannounced?
could we not have preannounced?
could you not have preannounced?
could they not have preannounced? 	could I not have been preannouncing?
could you not have been preannouncing?
could he not have been preannouncing?
could we not have been preannouncing?
could you not have been preannouncing?
could they not have been preannouncing?