English verb conjugation
CAN SHRILL

Regular verb: shrill - shrilled - shrilled

Affirmation

Simple form	V-ing form
I can shrill you can shrill she can shrill we can shrill you can shrill they can shrill	I can be shrilling you can be shrilling she can be shrilling we can be shrilling you can be shrilling they can be shrilling
Perfect	V-ing perfect
I can have shrilled you can have shrilled she can have shrilled we can have shrilled you can have shrilled they can have shrilled	I can have been shrilling you can have been shrilling she can have been shrilling we can have been shrilling you can have been shrilling they can have been shrilling

Negation

Simple form	V-ing form
I can't shrill you can't shrill she can't shrill we can't shrill you can't shrill they can't shrill	I can't be shrilling you can't be shrilling she can't be shrilling we can't be shrilling you can't be shrilling they can't be shrilling
Perfect	V-ing perfect
I can't have shrilled you can't have shrilled she can't have shrilled we can't have shrilled you can't have shrilled they can't have shrilled	I can't have been shrilling you can't have been shrilling she can't have been shrilling we can't have been shrilling you can't have been shrilling they can't have been shrilling

Interrogative form

Simple form	V-ing form
can I shrill? can you shrill? can she shrill? can we shrill? can you shrill? can they shrill?	can I be shrilling? can you be shrilling? can she be shrilling? can we be shrilling? can you be shrilling? can they be shrilling?
Perfect	V-ing perfect
can I have shrilled? can you have shrilled? can she have shrilled? can we have shrilled? can you have shrilled? can they have shrilled?	can I have been shrilling? can you have been shrilling? can she have been shrilling? can we have been shrilling? can you have been shrilling? can they have been shrilling?

Interro-negative form

Simple form	V-ing form
can't I shrill? can't you shrill? can't she shrill? can't we shrill? can't you shrill? can't they shrill?	can't I be shrilling? can't you be shrilling? can't she be shrilling? can't we be shrilling? can't you be shrilling? can't they be shrilling?
Perfect	V-ing perfect
can't I have shrilled? can't you have shrilled? can't she have shrilled? can't we have shrilled? can't you have shrilled? can't they have shrilled?	can't I have been shrilling? can't you have been shrilling? can't she have been shrilling? can't we have been shrilling? can't you have been shrilling? can't they have been shrilling?