must gratulate
Verbo regular: gratulate - gratulated- gratulated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must gratulate
you must gratulate
he must gratulate
we must gratulate
you must gratulate
they must gratulate 	I must be gratulating
you must be gratulating
he must be gratulating
we must be gratulating
you must be gratulating
they must be gratulating	I must have gratulated
you must have gratulated
he must have gratulated
we must have gratulated
you must have gratulated
they must have gratulated	I must have been gratulating
you must have been gratulating
he must have been gratulating
we must have been gratulating
you must have been gratulating
they must have been gratulating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't gratulate
you mustn't gratulate
he mustn't gratulate
we mustn't gratulate
you mustn't gratulate
they mustn't gratulate 	I mustn't be gratulating
you mustn't be gratulating
he mustn't be gratulating
we mustn't be gratulating
you mustn't be gratulating
they mustn't be gratulating	I mustn't have gratulated
you mustn't have gratulated
he mustn't have gratulated
we mustn't have gratulated
you mustn't have gratulated
they mustn't have gratulated	I mustn't have been gratulating
you mustn't have been gratulating
he mustn't have been gratulating
we mustn't have been gratulating
you mustn't have been gratulating
they mustn't have been gratulating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I gratulate?
must you gratulate?
must he gratulate?
must we gratulate?
must you gratulate?
must they gratulate? 	must I be gratulating?
must you be gratulating?
must he be gratulating?
must we be gratulating?
must you be gratulating?
must they be gratulating? 	must I have gratulated?
must you have gratulated?
must he have gratulated?
must we have gratulated?
must you have gratulated?
must they have gratulated? 	must I have been gratulating?
must you have been gratulating?
must he have been gratulating?
must we have been gratulating?
must you have been gratulating?
must they have been gratulating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I gratulate?
mustn't you gratulate?
mustn't he gratulate?
mustn't we gratulate?
mustn't you gratulate?
mustn't they gratulate? 	mustn't I be gratulating?
mustn't you be gratulating?
mustn't he be gratulating?
mustn't we be gratulating?
mustn't you be gratulating?
mustn't they be gratulating? 	mustn't I have gratulated?
mustn't you have gratulated?
mustn't he have gratulated?
mustn't we have gratulated?
mustn't you have gratulated?
mustn't they have gratulated? 	mustn't I have been gratulating?
mustn't you have been gratulating?
mustn't he have been gratulating?
mustn't we have been gratulating?
mustn't you have been gratulating?
mustn't they have been gratulating?