English verb conjugation
CAN PREINSTRUCT

Regular verb: preinstruct - preinstructed - preinstructed

Affirmation

Simple form	V-ing form
I can preinstruct you can preinstruct she can preinstruct we can preinstruct you can preinstruct they can preinstruct	I can be preinstructing you can be preinstructing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she preinstruct? can we preinstruct? can you preinstruct? can they preinstruct?	can I be preinstructing? can you be preinstructing? can she 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 she 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 she 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 she 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 she 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 she 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 she have been preinstructing? can't we have been preinstructing? can't you have been preinstructing? can't they have been preinstructing?