can assist
Verbo regular: assist - assisted- assisted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can assist
you can assist
he can assist
we can assist
you can assist
they can assist 	I can be assisting
you can be assisting
he can be assisting
we can be assisting
you can be assisting
they can be assisting	I can have assisted
you can have assisted
he can have assisted
we can have assisted
you can have assisted
they can have assisted	I can have been assisting
you can have been assisting
he can have been assisting
we can have been assisting
you can have been assisting
they can have been assisting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't assist
you can't assist
he can't assist
we can't assist
you can't assist
they can't assist 	I can't be assisting
you can't be assisting
he can't be assisting
we can't be assisting
you can't be assisting
they can't be assisting	I can't have assisted
you can't have assisted
he can't have assisted
we can't have assisted
you can't have assisted
they can't have assisted	I can't have been assisting
you can't have been assisting
he can't have been assisting
we can't have been assisting
you can't have been assisting
they can't have been assisting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I assist?
can you assist?
can he assist?
can we assist?
can you assist?
can they assist? 	can I be assisting?
can you be assisting?
can he be assisting?
can we be assisting?
can you be assisting?
can they be assisting? 	can I have assisted?
can you have assisted?
can he have assisted?
can we have assisted?
can you have assisted?
can they have assisted? 	can I have been assisting?
can you have been assisting?
can he have been assisting?
can we have been assisting?
can you have been assisting?
can they have been assisting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I assist?
can't you assist?
can't he assist?
can't we assist?
can't you assist?
can't they assist? 	can't I be assisting?
can't you be assisting?
can't he be assisting?
can't we be assisting?
can't you be assisting?
can't they be assisting? 	can't I have assisted?
can't you have assisted?
can't he have assisted?
can't we have assisted?
can't you have assisted?
can't they have assisted? 	can't I have been assisting?
can't you have been assisting?
can't he have been assisting?
can't we have been assisting?
can't you have been assisting?
can't they have been assisting?