must straggle
Regular verb: straggle - straggled- straggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must straggle
you must straggle
he must straggle
we must straggle
you must straggle
they must straggle 	I must be straggling
you must be straggling
he must be straggling
we must be straggling
you must be straggling
they must be straggling	I must have straggled
you must have straggled
he must have straggled
we must have straggled
you must have straggled
they must have straggled	I must have been straggling
you must have been straggling
he must have been straggling
we must have been straggling
you must have been straggling
they must have been straggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not straggle
you must not straggle
he must not straggle
we must not straggle
you must not straggle
they must not straggle 	I must not be straggling
you must not be straggling
he must not be straggling
we must not be straggling
you must not be straggling
they must not be straggling	I must not have straggled
you must not have straggled
he must not have straggled
we must not have straggled
you must not have straggled
they must not have straggled	I must not have been straggling
you must not have been straggling
he must not have been straggling
we must not have been straggling
you must not have been straggling
they must not have been straggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I straggle?
must you straggle?
must he straggle?
must we straggle?
must you straggle?
must they straggle? 	must I be straggling?
must you be straggling?
must he be straggling?
must we be straggling?
must you be straggling?
must they be straggling? 	must I have straggled?
must you have straggled?
must he have straggled?
must we have straggled?
must you have straggled?
must they have straggled? 	must I have been straggling?
must you have been straggling?
must he have been straggling?
must we have been straggling?
must you have been straggling?
must they have been straggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not straggle?
must you not straggle?
must he not straggle?
must we not straggle?
must you not straggle?
must they not straggle? 	must I not be straggling?
must you not be straggling?
must he not be straggling?
must we not be straggling?
must you not be straggling?
must they not be straggling? 	must I not have straggled?
must you not have straggled?
must he not have straggled?
must we not have straggled?
must you not have straggled?
must they not have straggled? 	must I not have been straggling?
must you not have been straggling?
must he not have been straggling?
must we not have been straggling?
must you not have been straggling?
must they not have been straggling?