must entail
Regular verb: entail - entailed- entailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must entail
you must entail
she must entail
we must entail
you must entail
they must entail 	I must be entailing
you must be entailing
she must be entailing
we must be entailing
you must be entailing
they must be entailing	I must have entailed
you must have entailed
she must have entailed
we must have entailed
you must have entailed
they must have entailed	I must have been entailing
you must have been entailing
she must have been entailing
we must have been entailing
you must have been entailing
they must have been entailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't entail
you mustn't entail
she mustn't entail
we mustn't entail
you mustn't entail
they mustn't entail 	I mustn't be entailing
you mustn't be entailing
she mustn't be entailing
we mustn't be entailing
you mustn't be entailing
they mustn't be entailing	I mustn't have entailed
you mustn't have entailed
she mustn't have entailed
we mustn't have entailed
you mustn't have entailed
they mustn't have entailed	I mustn't have been entailing
you mustn't have been entailing
she mustn't have been entailing
we mustn't have been entailing
you mustn't have been entailing
they mustn't have been entailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I entail?
must you entail?
must she entail?
must we entail?
must you entail?
must they entail? 	must I be entailing?
must you be entailing?
must she be entailing?
must we be entailing?
must you be entailing?
must they be entailing? 	must I have entailed?
must you have entailed?
must she have entailed?
must we have entailed?
must you have entailed?
must they have entailed? 	must I have been entailing?
must you have been entailing?
must she have been entailing?
must we have been entailing?
must you have been entailing?
must they have been entailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I entail?
mustn't you entail?
mustn't she entail?
mustn't we entail?
mustn't you entail?
mustn't they entail? 	mustn't I be entailing?
mustn't you be entailing?
mustn't she be entailing?
mustn't we be entailing?
mustn't you be entailing?
mustn't they be entailing? 	mustn't I have entailed?
mustn't you have entailed?
mustn't she have entailed?
mustn't we have entailed?
mustn't you have entailed?
mustn't they have entailed? 	mustn't I have been entailing?
mustn't you have been entailing?
mustn't she have been entailing?
mustn't we have been entailing?
mustn't you have been entailing?
mustn't they have been entailing?