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 can't preannounce you can't preannounce he can't preannounce we can't preannounce you can't preannounce they can't preannounce	I can't be preannouncing you can't be preannouncing he can't be preannouncing we can't be preannouncing you can't be preannouncing they can't be preannouncing
Perfect	V-ing perfect
I can't have preannounced you can't have preannounced he can't have preannounced we can't have preannounced you can't have preannounced they can't have preannounced	I can't have been preannouncing you can't have been preannouncing he can't have been preannouncing we can't have been preannouncing you can't have been preannouncing they can't 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't I preannounce? can't you preannounce? can't he preannounce? can't we preannounce? can't you preannounce? can't they preannounce?	can't I be preannouncing? can't you be preannouncing? can't he be preannouncing? can't we be preannouncing? can't you be preannouncing? can't they be preannouncing?
Perfect	V-ing perfect
can't I have preannounced? can't you have preannounced? can't he have preannounced? can't we have preannounced? can't you have preannounced? can't they have preannounced?	can't I have been preannouncing? can't you have been preannouncing? can't he have been preannouncing? can't we have been preannouncing? can't you have been preannouncing? can't they have been preannouncing?