English verb conjugation
CAN CLUNK

Regular verb: clunk - clunked - clunked

Affirmation

Simple form	V-ing form
I can clunk you can clunk he can clunk we can clunk you can clunk they can clunk	I can be clunking you can be clunking he can be clunking we can be clunking you can be clunking they can be clunking
Perfect	V-ing perfect
I can have clunked you can have clunked he can have clunked we can have clunked you can have clunked they can have clunked	I can have been clunking you can have been clunking he can have been clunking we can have been clunking you can have been clunking they can have been clunking

Negation

Simple form	V-ing form
I can't clunk you can't clunk he can't clunk we can't clunk you can't clunk they can't clunk	I can't be clunking you can't be clunking he can't be clunking we can't be clunking you can't be clunking they can't be clunking
Perfect	V-ing perfect
I can't have clunked you can't have clunked he can't have clunked we can't have clunked you can't have clunked they can't have clunked	I can't have been clunking you can't have been clunking he can't have been clunking we can't have been clunking you can't have been clunking they can't have been clunking

Interrogative form

Simple form	V-ing form
can I clunk? can you clunk? can he clunk? can we clunk? can you clunk? can they clunk?	can I be clunking? can you be clunking? can he be clunking? can we be clunking? can you be clunking? can they be clunking?
Perfect	V-ing perfect
can I have clunked? can you have clunked? can he have clunked? can we have clunked? can you have clunked? can they have clunked?	can I have been clunking? can you have been clunking? can he have been clunking? can we have been clunking? can you have been clunking? can they have been clunking?

Interro-negative form

Simple form	V-ing form
can't I clunk? can't you clunk? can't he clunk? can't we clunk? can't you clunk? can't they clunk?	can't I be clunking? can't you be clunking? can't he be clunking? can't we be clunking? can't you be clunking? can't they be clunking?
Perfect	V-ing perfect
can't I have clunked? can't you have clunked? can't he have clunked? can't we have clunked? can't you have clunked? can't they have clunked?	can't I have been clunking? can't you have been clunking? can't he have been clunking? can't we have been clunking? can't you have been clunking? can't they have been clunking?