English verb conjugation
CAN FROST

Regular verb: frost - frosted - frosted

Affirmation

Simple form	V-ing form
I can frost you can frost she can frost we can frost you can frost they can frost	I can be frosting you can be frosting she can be frosting we can be frosting you can be frosting they can be frosting
Perfect	V-ing perfect
I can have frosted you can have frosted she can have frosted we can have frosted you can have frosted they can have frosted	I can have been frosting you can have been frosting she can have been frosting we can have been frosting you can have been frosting they can have been frosting

Negation

Simple form	V-ing form
I can't frost you can't frost she can't frost we can't frost you can't frost they can't frost	I can't be frosting you can't be frosting she can't be frosting we can't be frosting you can't be frosting they can't be frosting
Perfect	V-ing perfect
I can't have frosted you can't have frosted she can't have frosted we can't have frosted you can't have frosted they can't have frosted	I can't have been frosting you can't have been frosting she can't have been frosting we can't have been frosting you can't have been frosting they can't have been frosting

Interrogative form

Simple form	V-ing form
can I frost? can you frost? can she frost? can we frost? can you frost? can they frost?	can I be frosting? can you be frosting? can she be frosting? can we be frosting? can you be frosting? can they be frosting?
Perfect	V-ing perfect
can I have frosted? can you have frosted? can she have frosted? can we have frosted? can you have frosted? can they have frosted?	can I have been frosting? can you have been frosting? can she have been frosting? can we have been frosting? can you have been frosting? can they have been frosting?

Interro-negative form

Simple form	V-ing form
can't I frost? can't you frost? can't she frost? can't we frost? can't you frost? can't they frost?	can't I be frosting? can't you be frosting? can't she be frosting? can't we be frosting? can't you be frosting? can't they be frosting?
Perfect	V-ing perfect
can't I have frosted? can't you have frosted? can't she have frosted? can't we have frosted? can't you have frosted? can't they have frosted?	can't I have been frosting? can't you have been frosting? can't she have been frosting? can't we have been frosting? can't you have been frosting? can't they have been frosting?