English verb conjugation
CAN SHRIEK

Regular verb: shriek - shrieked - shrieked

Affirmation

Simple form	V-ing form
I can shriek you can shriek he can shriek we can shriek you can shriek they can shriek	I can be shrieking you can be shrieking he can be shrieking we can be shrieking you can be shrieking they can be shrieking
Perfect	V-ing perfect
I can have shrieked you can have shrieked he can have shrieked we can have shrieked you can have shrieked they can have shrieked	I can have been shrieking you can have been shrieking he can have been shrieking we can have been shrieking you can have been shrieking they can have been shrieking

Negation

Simple form	V-ing form
I can't shriek you can't shriek he can't shriek we can't shriek you can't shriek they can't shriek	I can't be shrieking you can't be shrieking he can't be shrieking we can't be shrieking you can't be shrieking they can't be shrieking
Perfect	V-ing perfect
I can't have shrieked you can't have shrieked he can't have shrieked we can't have shrieked you can't have shrieked they can't have shrieked	I can't have been shrieking you can't have been shrieking he can't have been shrieking we can't have been shrieking you can't have been shrieking they can't have been shrieking

Interrogative form

Simple form	V-ing form
can I shriek? can you shriek? can he shriek? can we shriek? can you shriek? can they shriek?	can I be shrieking? can you be shrieking? can he be shrieking? can we be shrieking? can you be shrieking? can they be shrieking?
Perfect	V-ing perfect
can I have shrieked? can you have shrieked? can he have shrieked? can we have shrieked? can you have shrieked? can they have shrieked?	can I have been shrieking? can you have been shrieking? can he have been shrieking? can we have been shrieking? can you have been shrieking? can they have been shrieking?

Interro-negative form

Simple form	V-ing form
can't I shriek? can't you shriek? can't he shriek? can't we shriek? can't you shriek? can't they shriek?	can't I be shrieking? can't you be shrieking? can't he be shrieking? can't we be shrieking? can't you be shrieking? can't they be shrieking?
Perfect	V-ing perfect
can't I have shrieked? can't you have shrieked? can't he have shrieked? can't we have shrieked? can't you have shrieked? can't they have shrieked?	can't I have been shrieking? can't you have been shrieking? can't he have been shrieking? can't we have been shrieking? can't you have been shrieking? can't they have been shrieking?