may gratulate
Verbo regular: gratulate - gratulated- gratulated

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

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not gratulate
you may not gratulate
he may not gratulate
we may not gratulate
you may not gratulate
they may not gratulate 	I may not be gratulating
you may not be gratulating
he may not be gratulating
we may not be gratulating
you may not be gratulating
they may not be gratulating	I may not have gratulated
you may not have gratulated
he may not have gratulated
we may not have gratulated
you may not have gratulated
they may not have gratulated	I may not have been gratulating
you may not have been gratulating
he may not have been gratulating
we may not have been gratulating
you may not have been gratulating
they may not have been gratulating	

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

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