must cockle
Regular verb: cockle - cockled- cockled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cockle
you must cockle
he must cockle
we must cockle
you must cockle
they must cockle 	I must be cockling
you must be cockling
he must be cockling
we must be cockling
you must be cockling
they must be cockling	I must have cockled
you must have cockled
he must have cockled
we must have cockled
you must have cockled
they must have cockled	I must have been cockling
you must have been cockling
he must have been cockling
we must have been cockling
you must have been cockling
they must have been cockling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not cockle
you must not cockle
he must not cockle
we must not cockle
you must not cockle
they must not cockle 	I must not be cockling
you must not be cockling
he must not be cockling
we must not be cockling
you must not be cockling
they must not be cockling	I must not have cockled
you must not have cockled
he must not have cockled
we must not have cockled
you must not have cockled
they must not have cockled	I must not have been cockling
you must not have been cockling
he must not have been cockling
we must not have been cockling
you must not have been cockling
they must not have been cockling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cockle?
must you cockle?
must he cockle?
must we cockle?
must you cockle?
must they cockle? 	must I be cockling?
must you be cockling?
must he be cockling?
must we be cockling?
must you be cockling?
must they be cockling? 	must I have cockled?
must you have cockled?
must he have cockled?
must we have cockled?
must you have cockled?
must they have cockled? 	must I have been cockling?
must you have been cockling?
must he have been cockling?
must we have been cockling?
must you have been cockling?
must they have been cockling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not cockle?
must you not cockle?
must he not cockle?
must we not cockle?
must you not cockle?
must they not cockle? 	must I not be cockling?
must you not be cockling?
must he not be cockling?
must we not be cockling?
must you not be cockling?
must they not be cockling? 	must I not have cockled?
must you not have cockled?
must he not have cockled?
must we not have cockled?
must you not have cockled?
must they not have cockled? 	must I not have been cockling?
must you not have been cockling?
must he not have been cockling?
must we not have been cockling?
must you not have been cockling?
must they not have been cockling?