must tender
Verbo regular: tender - tendered- tendered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tender
you must tender
he must tender
we must tender
you must tender
they must tender 	I must be tendering
you must be tendering
he must be tendering
we must be tendering
you must be tendering
they must be tendering	I must have tendered
you must have tendered
he must have tendered
we must have tendered
you must have tendered
they must have tendered	I must have been tendering
you must have been tendering
he must have been tendering
we must have been tendering
you must have been tendering
they must have been tendering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't tender
you mustn't tender
he mustn't tender
we mustn't tender
you mustn't tender
they mustn't tender 	I mustn't be tendering
you mustn't be tendering
he mustn't be tendering
we mustn't be tendering
you mustn't be tendering
they mustn't be tendering	I mustn't have tendered
you mustn't have tendered
he mustn't have tendered
we mustn't have tendered
you mustn't have tendered
they mustn't have tendered	I mustn't have been tendering
you mustn't have been tendering
he mustn't have been tendering
we mustn't have been tendering
you mustn't have been tendering
they mustn't have been tendering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tender?
must you tender?
must he tender?
must we tender?
must you tender?
must they tender? 	must I be tendering?
must you be tendering?
must he be tendering?
must we be tendering?
must you be tendering?
must they be tendering? 	must I have tendered?
must you have tendered?
must he have tendered?
must we have tendered?
must you have tendered?
must they have tendered? 	must I have been tendering?
must you have been tendering?
must he have been tendering?
must we have been tendering?
must you have been tendering?
must they have been tendering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I tender?
mustn't you tender?
mustn't he tender?
mustn't we tender?
mustn't you tender?
mustn't they tender? 	mustn't I be tendering?
mustn't you be tendering?
mustn't he be tendering?
mustn't we be tendering?
mustn't you be tendering?
mustn't they be tendering? 	mustn't I have tendered?
mustn't you have tendered?
mustn't he have tendered?
mustn't we have tendered?
mustn't you have tendered?
mustn't they have tendered? 	mustn't I have been tendering?
mustn't you have been tendering?
mustn't he have been tendering?
mustn't we have been tendering?
mustn't you have been tendering?
mustn't they have been tendering?