English verb conjugation
CAN PREANNOUNCE

Regular verb: preannounce - preannounced - preannounced

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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