English verb conjugation
CAN PENETRATE

Regular verb: penetrate - penetrated - penetrated

Affirmation

Simple form	V-ing form
I can penetrate you can penetrate he can penetrate we can penetrate you can penetrate they can penetrate	I can be penetrating you can be penetrating he can be penetrating we can be penetrating you can be penetrating they can be penetrating
Perfect	V-ing perfect
I can have penetrated you can have penetrated he can have penetrated we can have penetrated you can have penetrated they can have penetrated	I can have been penetrating you can have been penetrating he can have been penetrating we can have been penetrating you can have been penetrating they can have been penetrating

Negation

Simple form	V-ing form
I can't penetrate you can't penetrate he can't penetrate we can't penetrate you can't penetrate they can't penetrate	I can't be penetrating you can't be penetrating he can't be penetrating we can't be penetrating you can't be penetrating they can't be penetrating
Perfect	V-ing perfect
I can't have penetrated you can't have penetrated he can't have penetrated we can't have penetrated you can't have penetrated they can't have penetrated	I can't have been penetrating you can't have been penetrating he can't have been penetrating we can't have been penetrating you can't have been penetrating they can't have been penetrating

Interrogative form

Simple form	V-ing form
can I penetrate? can you penetrate? can he penetrate? can we penetrate? can you penetrate? can they penetrate?	can I be penetrating? can you be penetrating? can he be penetrating? can we be penetrating? can you be penetrating? can they be penetrating?
Perfect	V-ing perfect
can I have penetrated? can you have penetrated? can he have penetrated? can we have penetrated? can you have penetrated? can they have penetrated?	can I have been penetrating? can you have been penetrating? can he have been penetrating? can we have been penetrating? can you have been penetrating? can they have been penetrating?

Interro-negative form

Simple form	V-ing form
can't I penetrate? can't you penetrate? can't he penetrate? can't we penetrate? can't you penetrate? can't they penetrate?	can't I be penetrating? can't you be penetrating? can't he be penetrating? can't we be penetrating? can't you be penetrating? can't they be penetrating?
Perfect	V-ing perfect
can't I have penetrated? can't you have penetrated? can't he have penetrated? can't we have penetrated? can't you have penetrated? can't they have penetrated?	can't I have been penetrating? can't you have been penetrating? can't he have been penetrating? can't we have been penetrating? can't you have been penetrating? can't they have been penetrating?