shall contribute
Verbo regular: contribute - contributed- contributed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'll contribute
you'll contribute
he'll contribute
we'll contribute
you'll contribute
they'll contribute 	I'll be contributing
you'll be contributing
he'll be contributing
we'll be contributing
you'll be contributing
they'll be contributing	I'll have contributed
you'll have contributed
he'll have contributed
we'll have contributed
you'll have contributed
they'll have contributed	I'll have been contributing
you'll have been contributing
he'll have been contributing
we'll have been contributing
you'll have been contributing
they'll have been contributing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shan't contribute
you shan't contribute
he shan't contribute
we shan't contribute
you shan't contribute
they shan't contribute 	I shan't be contributing
you shan't be contributing
he shan't be contributing
we shan't be contributing
you shan't be contributing
they shan't be contributing	I shan't have contributed
you shan't have contributed
he shan't have contributed
we shan't have contributed
you shan't have contributed
they shan't have contributed	I shan't have been contributing
you shan't have been contributing
he shan't have been contributing
we shan't have been contributing
you shan't have been contributing
they shan't have been contributing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I contribute?
shall you contribute?
shall he contribute?
shall we contribute?
shall you contribute?
shall they contribute? 	shall I be contributing?
shall you be contributing?
shall he be contributing?
shall we be contributing?
shall you be contributing?
shall they be contributing? 	shall I have contributed?
shall you have contributed?
shall he have contributed?
shall we have contributed?
shall you have contributed?
shall they have contributed? 	shall I have been contributing?
shall you have been contributing?
shall he have been contributing?
shall we have been contributing?
shall you have been contributing?
shall they have been contributing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shan't I contribute?
shan't you contribute?
shan't he contribute?
shan't we contribute?
shan't you contribute?
shan't they contribute? 	shan't I be contributing?
shan't you be contributing?
shan't he be contributing?
shan't we be contributing?
shan't you be contributing?
shan't they be contributing? 	shan't I have contributed?
shan't you have contributed?
shan't he have contributed?
shan't we have contributed?
shan't you have contributed?
shan't they have contributed? 	shan't I have been contributing?
shan't you have been contributing?
shan't he have been contributing?
shan't we have been contributing?
shan't you have been contributing?
shan't they have been contributing?