can invigilate
Verbo regular: invigilate - invigilated- invigilated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can invigilate
you can invigilate
he can invigilate
we can invigilate
you can invigilate
they can invigilate 	I can be invigilating
you can be invigilating
he can be invigilating
we can be invigilating
you can be invigilating
they can be invigilating	I can have invigilated
you can have invigilated
he can have invigilated
we can have invigilated
you can have invigilated
they can have invigilated	I can have been invigilating
you can have been invigilating
he can have been invigilating
we can have been invigilating
you can have been invigilating
they can have been invigilating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot invigilate
you cannot invigilate
he cannot invigilate
we cannot invigilate
you cannot invigilate
they cannot invigilate 	I cannot be invigilating
you cannot be invigilating
he cannot be invigilating
we cannot be invigilating
you cannot be invigilating
they cannot be invigilating	I cannot have invigilated
you cannot have invigilated
he cannot have invigilated
we cannot have invigilated
you cannot have invigilated
they cannot have invigilated	I cannot have been invigilating
you cannot have been invigilating
he cannot have been invigilating
we cannot have been invigilating
you cannot have been invigilating
they cannot have been invigilating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I invigilate?
can you invigilate?
can he invigilate?
can we invigilate?
can you invigilate?
can they invigilate? 	can I be invigilating?
can you be invigilating?
can he be invigilating?
can we be invigilating?
can you be invigilating?
can they be invigilating? 	can I have invigilated?
can you have invigilated?
can he have invigilated?
can we have invigilated?
can you have invigilated?
can they have invigilated? 	can I have been invigilating?
can you have been invigilating?
can he have been invigilating?
can we have been invigilating?
can you have been invigilating?
can they have been invigilating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not invigilate?
can you not invigilate?
can he not invigilate?
can we not invigilate?
can you not invigilate?
can they not invigilate? 	can I not be invigilating?
can you not be invigilating?
can he not be invigilating?
can we not be invigilating?
can you not be invigilating?
can they not be invigilating? 	can I not have invigilated?
can you not have invigilated?
can he not have invigilated?
can we not have invigilated?
can you not have invigilated?
can they not have invigilated? 	can I not have been invigilating?
can you not have been invigilating?
can he not have been invigilating?
can we not have been invigilating?
can you not have been invigilating?
can they not have been invigilating?