must clunk
Verbo regular: clunk - clunked- clunked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must clunk
you must clunk
he must clunk
we must clunk
you must clunk
they must clunk 	I must be clunking
you must be clunking
he must be clunking
we must be clunking
you must be clunking
they must be clunking	I must have clunked
you must have clunked
he must have clunked
we must have clunked
you must have clunked
they must have clunked	I must have been clunking
you must have been clunking
he must have been clunking
we must have been clunking
you must have been clunking
they must have been clunking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not clunk
you must not clunk
he must not clunk
we must not clunk
you must not clunk
they must not clunk 	I must not be clunking
you must not be clunking
he must not be clunking
we must not be clunking
you must not be clunking
they must not be clunking	I must not have clunked
you must not have clunked
he must not have clunked
we must not have clunked
you must not have clunked
they must not have clunked	I must not have been clunking
you must not have been clunking
he must not have been clunking
we must not have been clunking
you must not have been clunking
they must not have been clunking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I clunk?
must you clunk?
must he clunk?
must we clunk?
must you clunk?
must they clunk? 	must I be clunking?
must you be clunking?
must he be clunking?
must we be clunking?
must you be clunking?
must they be clunking? 	must I have clunked?
must you have clunked?
must he have clunked?
must we have clunked?
must you have clunked?
must they have clunked? 	must I have been clunking?
must you have been clunking?
must he have been clunking?
must we have been clunking?
must you have been clunking?
must they have been clunking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not clunk?
must you not clunk?
must he not clunk?
must we not clunk?
must you not clunk?
must they not clunk? 	must I not be clunking?
must you not be clunking?
must he not be clunking?
must we not be clunking?
must you not be clunking?
must they not be clunking? 	must I not have clunked?
must you not have clunked?
must he not have clunked?
must we not have clunked?
must you not have clunked?
must they not have clunked? 	must I not have been clunking?
must you not have been clunking?
must he not have been clunking?
must we not have been clunking?
must you not have been clunking?
must they not have been clunking?