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 can't polygraph you can't polygraph he can't polygraph we can't polygraph you can't polygraph they can't polygraph	I can't be polygraphing you can't be polygraphing he can't be polygraphing we can't be polygraphing you can't be polygraphing they can't be polygraphing
Perfect	V-ing perfect
I can't have polygraphed you can't have polygraphed he can't have polygraphed we can't have polygraphed you can't have polygraphed they can't have polygraphed	I can't have been polygraphing you can't have been polygraphing he can't have been polygraphing we can't have been polygraphing you can't have been polygraphing they can't 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't I polygraph? can't you polygraph? can't he polygraph? can't we polygraph? can't you polygraph? can't they polygraph?	can't I be polygraphing? can't you be polygraphing? can't he be polygraphing? can't we be polygraphing? can't you be polygraphing? can't they be polygraphing?
Perfect	V-ing perfect
can't I have polygraphed? can't you have polygraphed? can't he have polygraphed? can't we have polygraphed? can't you have polygraphed? can't they have polygraphed?	can't I have been polygraphing? can't you have been polygraphing? can't he have been polygraphing? can't we have been polygraphing? can't you have been polygraphing? can't they have been polygraphing?