must fling
Irregular verb: fling - flung- flung

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must fling
you must fling
she must fling
we must fling
you must fling
they must fling 	I must be flinging
you must be flinging
she must be flinging
we must be flinging
you must be flinging
they must be flinging	I must have flung
you must have flung
she must have flung
we must have flung
you must have flung
they must have flung	I must have been flinging
you must have been flinging
she must have been flinging
we must have been flinging
you must have been flinging
they must have been flinging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not fling
you must not fling
she must not fling
we must not fling
you must not fling
they must not fling 	I must not be flinging
you must not be flinging
she must not be flinging
we must not be flinging
you must not be flinging
they must not be flinging	I must not have flung
you must not have flung
she must not have flung
we must not have flung
you must not have flung
they must not have flung	I must not have been flinging
you must not have been flinging
she must not have been flinging
we must not have been flinging
you must not have been flinging
they must not have been flinging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I fling?
must you fling?
must she fling?
must we fling?
must you fling?
must they fling? 	must I be flinging?
must you be flinging?
must she be flinging?
must we be flinging?
must you be flinging?
must they be flinging? 	must I have flung?
must you have flung?
must she have flung?
must we have flung?
must you have flung?
must they have flung? 	must I have been flinging?
must you have been flinging?
must she have been flinging?
must we have been flinging?
must you have been flinging?
must they have been flinging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not fling?
must you not fling?
must she not fling?
must we not fling?
must you not fling?
must they not fling? 	must I not be flinging?
must you not be flinging?
must she not be flinging?
must we not be flinging?
must you not be flinging?
must they not be flinging? 	must I not have flung?
must you not have flung?
must she not have flung?
must we not have flung?
must you not have flung?
must they not have flung? 	must I not have been flinging?
must you not have been flinging?
must she not have been flinging?
must we not have been flinging?
must you not have been flinging?
must they not have been flinging?