English verb conjugation
CAN CRUST

Regular verb: crust - crusted - crusted

Affirmation

Simple form	V-ing form
I can crust you can crust she can crust we can crust you can crust they can crust	I can be crusting you can be crusting she can be crusting we can be crusting you can be crusting they can be crusting
Perfect	V-ing perfect
I can have crusted you can have crusted she can have crusted we can have crusted you can have crusted they can have crusted	I can have been crusting you can have been crusting she can have been crusting we can have been crusting you can have been crusting they can have been crusting

Negation

Simple form	V-ing form
I cannot crust you cannot crust she cannot crust we cannot crust you cannot crust they cannot crust	I cannot be crusting you cannot be crusting she cannot be crusting we cannot be crusting you cannot be crusting they cannot be crusting
Perfect	V-ing perfect
I cannot have crusted you cannot have crusted she cannot have crusted we cannot have crusted you cannot have crusted they cannot have crusted	I cannot have been crusting you cannot have been crusting she cannot have been crusting we cannot have been crusting you cannot have been crusting they cannot have been crusting

Interrogative form

Simple form	V-ing form
can I crust? can you crust? can she crust? can we crust? can you crust? can they crust?	can I be crusting? can you be crusting? can she be crusting? can we be crusting? can you be crusting? can they be crusting?
Perfect	V-ing perfect
can I have crusted? can you have crusted? can she have crusted? can we have crusted? can you have crusted? can they have crusted?	can I have been crusting? can you have been crusting? can she have been crusting? can we have been crusting? can you have been crusting? can they have been crusting?

Interro-negative form

Simple form	V-ing form
can I not crust? can you not crust? can she not crust? can we not crust? can you not crust? can they not crust?	can I not be crusting? can you not be crusting? can she not be crusting? can we not be crusting? can you not be crusting? can they not be crusting?
Perfect	V-ing perfect
can I not have crusted? can you not have crusted? can she not have crusted? can we not have crusted? can you not have crusted? can they not have crusted?	can I not have been crusting? can you not have been crusting? can she not have been crusting? can we not have been crusting? can you not have been crusting? can they not have been crusting?