English verb conjugation
CAN PREINSTRUCT

Regular verb: preinstruct - preinstructed - preinstructed

Affirmation

Simple form	V-ing form
I can preinstruct you can preinstruct he can preinstruct we can preinstruct you can preinstruct they can preinstruct	I can be preinstructing you can be preinstructing he can be preinstructing we can be preinstructing you can be preinstructing they can be preinstructing
Perfect	V-ing perfect
I can have preinstructed you can have preinstructed he can have preinstructed we can have preinstructed you can have preinstructed they can have preinstructed	I can have been preinstructing you can have been preinstructing he can have been preinstructing we can have been preinstructing you can have been preinstructing they can have been preinstructing

Negation

Simple form	V-ing form
I can't preinstruct you can't preinstruct he can't preinstruct we can't preinstruct you can't preinstruct they can't preinstruct	I can't be preinstructing you can't be preinstructing he can't be preinstructing we can't be preinstructing you can't be preinstructing they can't be preinstructing
Perfect	V-ing perfect
I can't have preinstructed you can't have preinstructed he can't have preinstructed we can't have preinstructed you can't have preinstructed they can't have preinstructed	I can't have been preinstructing you can't have been preinstructing he can't have been preinstructing we can't have been preinstructing you can't have been preinstructing they can't have been preinstructing

Interrogative form

Simple form	V-ing form
can I preinstruct? can you preinstruct? can he preinstruct? can we preinstruct? can you preinstruct? can they preinstruct?	can I be preinstructing? can you be preinstructing? can he be preinstructing? can we be preinstructing? can you be preinstructing? can they be preinstructing?
Perfect	V-ing perfect
can I have preinstructed? can you have preinstructed? can he have preinstructed? can we have preinstructed? can you have preinstructed? can they have preinstructed?	can I have been preinstructing? can you have been preinstructing? can he have been preinstructing? can we have been preinstructing? can you have been preinstructing? can they have been preinstructing?

Interro-negative form

Simple form	V-ing form
can't I preinstruct? can't you preinstruct? can't he preinstruct? can't we preinstruct? can't you preinstruct? can't they preinstruct?	can't I be preinstructing? can't you be preinstructing? can't he be preinstructing? can't we be preinstructing? can't you be preinstructing? can't they be preinstructing?
Perfect	V-ing perfect
can't I have preinstructed? can't you have preinstructed? can't he have preinstructed? can't we have preinstructed? can't you have preinstructed? can't they have preinstructed?	can't I have been preinstructing? can't you have been preinstructing? can't he have been preinstructing? can't we have been preinstructing? can't you have been preinstructing? can't they have been preinstructing?