English verb conjugation
CAN ENDOW

Regular verb: endow - endowed - endowed

Affirmation

Simple form	V-ing form
I can endow you can endow he can endow we can endow you can endow they can endow	I can be endowing you can be endowing he can be endowing we can be endowing you can be endowing they can be endowing
Perfect	V-ing perfect
I can have endowed you can have endowed he can have endowed we can have endowed you can have endowed they can have endowed	I can have been endowing you can have been endowing he can have been endowing we can have been endowing you can have been endowing they can have been endowing

Negation

Simple form	V-ing form
I can't endow you can't endow he can't endow we can't endow you can't endow they can't endow	I can't be endowing you can't be endowing he can't be endowing we can't be endowing you can't be endowing they can't be endowing
Perfect	V-ing perfect
I can't have endowed you can't have endowed he can't have endowed we can't have endowed you can't have endowed they can't have endowed	I can't have been endowing you can't have been endowing he can't have been endowing we can't have been endowing you can't have been endowing they can't have been endowing

Interrogative form

Simple form	V-ing form
can I endow? can you endow? can he endow? can we endow? can you endow? can they endow?	can I be endowing? can you be endowing? can he be endowing? can we be endowing? can you be endowing? can they be endowing?
Perfect	V-ing perfect
can I have endowed? can you have endowed? can he have endowed? can we have endowed? can you have endowed? can they have endowed?	can I have been endowing? can you have been endowing? can he have been endowing? can we have been endowing? can you have been endowing? can they have been endowing?

Interro-negative form

Simple form	V-ing form
can't I endow? can't you endow? can't he endow? can't we endow? can't you endow? can't they endow?	can't I be endowing? can't you be endowing? can't he be endowing? can't we be endowing? can't you be endowing? can't they be endowing?
Perfect	V-ing perfect
can't I have endowed? can't you have endowed? can't he have endowed? can't we have endowed? can't you have endowed? can't they have endowed?	can't I have been endowing? can't you have been endowing? can't he have been endowing? can't we have been endowing? can't you have been endowing? can't they have been endowing?