English verb conjugation
CAN PREACKNOWLEDGE

Regular verb: preacknowledge - preacknowledged - preacknowledged

Affirmation

Simple form	V-ing form
I can preacknowledge you can preacknowledge he can preacknowledge we can preacknowledge you can preacknowledge they can preacknowledge	I can be preacknowledging you can be preacknowledging he can be preacknowledging we can be preacknowledging you can be preacknowledging they can be preacknowledging
Perfect	V-ing perfect
I can have preacknowledged you can have preacknowledged he can have preacknowledged we can have preacknowledged you can have preacknowledged they can have preacknowledged	I can have been preacknowledging you can have been preacknowledging he can have been preacknowledging we can have been preacknowledging you can have been preacknowledging they can have been preacknowledging

Negation

Simple form	V-ing form
I can't preacknowledge you can't preacknowledge he can't preacknowledge we can't preacknowledge you can't preacknowledge they can't preacknowledge	I can't be preacknowledging you can't be preacknowledging he can't be preacknowledging we can't be preacknowledging you can't be preacknowledging they can't be preacknowledging
Perfect	V-ing perfect
I can't have preacknowledged you can't have preacknowledged he can't have preacknowledged we can't have preacknowledged you can't have preacknowledged they can't have preacknowledged	I can't have been preacknowledging you can't have been preacknowledging he can't have been preacknowledging we can't have been preacknowledging you can't have been preacknowledging they can't have been preacknowledging

Interrogative form

Simple form	V-ing form
can I preacknowledge? can you preacknowledge? can he preacknowledge? can we preacknowledge? can you preacknowledge? can they preacknowledge?	can I be preacknowledging? can you be preacknowledging? can he be preacknowledging? can we be preacknowledging? can you be preacknowledging? can they be preacknowledging?
Perfect	V-ing perfect
can I have preacknowledged? can you have preacknowledged? can he have preacknowledged? can we have preacknowledged? can you have preacknowledged? can they have preacknowledged?	can I have been preacknowledging? can you have been preacknowledging? can he have been preacknowledging? can we have been preacknowledging? can you have been preacknowledging? can they have been preacknowledging?

Interro-negative form

Simple form	V-ing form
can't I preacknowledge? can't you preacknowledge? can't he preacknowledge? can't we preacknowledge? can't you preacknowledge? can't they preacknowledge?	can't I be preacknowledging? can't you be preacknowledging? can't he be preacknowledging? can't we be preacknowledging? can't you be preacknowledging? can't they be preacknowledging?
Perfect	V-ing perfect
can't I have preacknowledged? can't you have preacknowledged? can't he have preacknowledged? can't we have preacknowledged? can't you have preacknowledged? can't they have preacknowledged?	can't I have been preacknowledging? can't you have been preacknowledging? can't he have been preacknowledging? can't we have been preacknowledging? can't you have been preacknowledging? can't they have been preacknowledging?