must consider
Regular verb: consider - considered- considered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must consider
you must consider
she must consider
we must consider
you must consider
they must consider 	I must be considering
you must be considering
she must be considering
we must be considering
you must be considering
they must be considering	I must have considered
you must have considered
she must have considered
we must have considered
you must have considered
they must have considered	I must have been considering
you must have been considering
she must have been considering
we must have been considering
you must have been considering
they must have been considering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't consider
you mustn't consider
she mustn't consider
we mustn't consider
you mustn't consider
they mustn't consider 	I mustn't be considering
you mustn't be considering
she mustn't be considering
we mustn't be considering
you mustn't be considering
they mustn't be considering	I mustn't have considered
you mustn't have considered
she mustn't have considered
we mustn't have considered
you mustn't have considered
they mustn't have considered	I mustn't have been considering
you mustn't have been considering
she mustn't have been considering
we mustn't have been considering
you mustn't have been considering
they mustn't have been considering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I consider?
must you consider?
must she consider?
must we consider?
must you consider?
must they consider? 	must I be considering?
must you be considering?
must she be considering?
must we be considering?
must you be considering?
must they be considering? 	must I have considered?
must you have considered?
must she have considered?
must we have considered?
must you have considered?
must they have considered? 	must I have been considering?
must you have been considering?
must she have been considering?
must we have been considering?
must you have been considering?
must they have been considering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I consider?
mustn't you consider?
mustn't she consider?
mustn't we consider?
mustn't you consider?
mustn't they consider? 	mustn't I be considering?
mustn't you be considering?
mustn't she be considering?
mustn't we be considering?
mustn't you be considering?
mustn't they be considering? 	mustn't I have considered?
mustn't you have considered?
mustn't she have considered?
mustn't we have considered?
mustn't you have considered?
mustn't they have considered? 	mustn't I have been considering?
mustn't you have been considering?
mustn't she have been considering?
mustn't we have been considering?
mustn't you have been considering?
mustn't they have been considering?