must ossify
Verbo regular: ossify - ossified- ossified

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must ossify
you must ossify
he must ossify
we must ossify
you must ossify
they must ossify 	I must be ossifying
you must be ossifying
he must be ossifying
we must be ossifying
you must be ossifying
they must be ossifying	I must have ossified
you must have ossified
he must have ossified
we must have ossified
you must have ossified
they must have ossified	I must have been ossifying
you must have been ossifying
he must have been ossifying
we must have been ossifying
you must have been ossifying
they must have been ossifying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't ossify
you mustn't ossify
he mustn't ossify
we mustn't ossify
you mustn't ossify
they mustn't ossify 	I mustn't be ossifying
you mustn't be ossifying
he mustn't be ossifying
we mustn't be ossifying
you mustn't be ossifying
they mustn't be ossifying	I mustn't have ossified
you mustn't have ossified
he mustn't have ossified
we mustn't have ossified
you mustn't have ossified
they mustn't have ossified	I mustn't have been ossifying
you mustn't have been ossifying
he mustn't have been ossifying
we mustn't have been ossifying
you mustn't have been ossifying
they mustn't have been ossifying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I ossify?
must you ossify?
must he ossify?
must we ossify?
must you ossify?
must they ossify? 	must I be ossifying?
must you be ossifying?
must he be ossifying?
must we be ossifying?
must you be ossifying?
must they be ossifying? 	must I have ossified?
must you have ossified?
must he have ossified?
must we have ossified?
must you have ossified?
must they have ossified? 	must I have been ossifying?
must you have been ossifying?
must he have been ossifying?
must we have been ossifying?
must you have been ossifying?
must they have been ossifying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I ossify?
mustn't you ossify?
mustn't he ossify?
mustn't we ossify?
mustn't you ossify?
mustn't they ossify? 	mustn't I be ossifying?
mustn't you be ossifying?
mustn't he be ossifying?
mustn't we be ossifying?
mustn't you be ossifying?
mustn't they be ossifying? 	mustn't I have ossified?
mustn't you have ossified?
mustn't he have ossified?
mustn't we have ossified?
mustn't you have ossified?
mustn't they have ossified? 	mustn't I have been ossifying?
mustn't you have been ossifying?
mustn't he have been ossifying?
mustn't we have been ossifying?
mustn't you have been ossifying?
mustn't they have been ossifying?