English verb conjugation
CAN POLYGRAPH

Regular verb: polygraph - polygraphed - polygraphed

Affirmation

Simple form	V-ing form
I can polygraph you can polygraph he can polygraph we can polygraph you can polygraph they can polygraph	I can be polygraphing you can be polygraphing he can be polygraphing we can be polygraphing you can be polygraphing they can be polygraphing
Perfect	V-ing perfect
I can have polygraphed you can have polygraphed he can have polygraphed we can have polygraphed you can have polygraphed they can have polygraphed	I can have been polygraphing you can have been polygraphing he can have been polygraphing we can have been polygraphing you can have been polygraphing they can have been polygraphing

Negation

Simple form	V-ing form
I cannot polygraph you cannot polygraph he cannot polygraph we cannot polygraph you cannot polygraph they cannot polygraph	I cannot be polygraphing you cannot be polygraphing he cannot be polygraphing we cannot be polygraphing you cannot be polygraphing they cannot be polygraphing
Perfect	V-ing perfect
I cannot have polygraphed you cannot have polygraphed he cannot have polygraphed we cannot have polygraphed you cannot have polygraphed they cannot have polygraphed	I cannot have been polygraphing you cannot have been polygraphing he cannot have been polygraphing we cannot have been polygraphing you cannot have been polygraphing they cannot have been polygraphing

Interrogative form

Simple form	V-ing form
can I polygraph? can you polygraph? can he polygraph? can we polygraph? can you polygraph? can they polygraph?	can I be polygraphing? can you be polygraphing? can he be polygraphing? can we be polygraphing? can you be polygraphing? can they be polygraphing?
Perfect	V-ing perfect
can I have polygraphed? can you have polygraphed? can he have polygraphed? can we have polygraphed? can you have polygraphed? can they have polygraphed?	can I have been polygraphing? can you have been polygraphing? can he have been polygraphing? can we have been polygraphing? can you have been polygraphing? can they have been polygraphing?

Interro-negative form

Simple form	V-ing form
can I not polygraph? can you not polygraph? can he not polygraph? can we not polygraph? can you not polygraph? can they not polygraph?	can I not be polygraphing? can you not be polygraphing? can he not be polygraphing? can we not be polygraphing? can you not be polygraphing? can they not be polygraphing?
Perfect	V-ing perfect
can I not have polygraphed? can you not have polygraphed? can he not have polygraphed? can we not have polygraphed? can you not have polygraphed? can they not have polygraphed?	can I not have been polygraphing? can you not have been polygraphing? can he not have been polygraphing? can we not have been polygraphing? can you not have been polygraphing? can they not have been polygraphing?