can piece
Regular verb: piece - pieced- pieced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can piece
you can piece
he can piece
we can piece
you can piece
they can piece 	I can be piecing
you can be piecing
he can be piecing
we can be piecing
you can be piecing
they can be piecing	I can have pieced
you can have pieced
he can have pieced
we can have pieced
you can have pieced
they can have pieced	I can have been piecing
you can have been piecing
he can have been piecing
we can have been piecing
you can have been piecing
they can have been piecing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't piece
you can't piece
he can't piece
we can't piece
you can't piece
they can't piece 	I can't be piecing
you can't be piecing
he can't be piecing
we can't be piecing
you can't be piecing
they can't be piecing	I can't have pieced
you can't have pieced
he can't have pieced
we can't have pieced
you can't have pieced
they can't have pieced	I can't have been piecing
you can't have been piecing
he can't have been piecing
we can't have been piecing
you can't have been piecing
they can't have been piecing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I piece?
can you piece?
can he piece?
can we piece?
can you piece?
can they piece? 	can I be piecing?
can you be piecing?
can he be piecing?
can we be piecing?
can you be piecing?
can they be piecing? 	can I have pieced?
can you have pieced?
can he have pieced?
can we have pieced?
can you have pieced?
can they have pieced? 	can I have been piecing?
can you have been piecing?
can he have been piecing?
can we have been piecing?
can you have been piecing?
can they have been piecing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I piece?
can't you piece?
can't he piece?
can't we piece?
can't you piece?
can't they piece? 	can't I be piecing?
can't you be piecing?
can't he be piecing?
can't we be piecing?
can't you be piecing?
can't they be piecing? 	can't I have pieced?
can't you have pieced?
can't he have pieced?
can't we have pieced?
can't you have pieced?
can't they have pieced? 	can't I have been piecing?
can't you have been piecing?
can't he have been piecing?
can't we have been piecing?
can't you have been piecing?
can't they have been piecing?