can examine
Verbo regular: examine - examined- examined

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can examine
you can examine
she can examine
we can examine
you can examine
they can examine 	I can be examining
you can be examining
she can be examining
we can be examining
you can be examining
they can be examining	I can have examined
you can have examined
she can have examined
we can have examined
you can have examined
they can have examined	I can have been examining
you can have been examining
she can have been examining
we can have been examining
you can have been examining
they can have been examining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot examine
you cannot examine
she cannot examine
we cannot examine
you cannot examine
they cannot examine 	I cannot be examining
you cannot be examining
she cannot be examining
we cannot be examining
you cannot be examining
they cannot be examining	I cannot have examined
you cannot have examined
she cannot have examined
we cannot have examined
you cannot have examined
they cannot have examined	I cannot have been examining
you cannot have been examining
she cannot have been examining
we cannot have been examining
you cannot have been examining
they cannot have been examining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I examine?
can you examine?
can she examine?
can we examine?
can you examine?
can they examine? 	can I be examining?
can you be examining?
can she be examining?
can we be examining?
can you be examining?
can they be examining? 	can I have examined?
can you have examined?
can she have examined?
can we have examined?
can you have examined?
can they have examined? 	can I have been examining?
can you have been examining?
can she have been examining?
can we have been examining?
can you have been examining?
can they have been examining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not examine?
can you not examine?
can she not examine?
can we not examine?
can you not examine?
can they not examine? 	can I not be examining?
can you not be examining?
can she not be examining?
can we not be examining?
can you not be examining?
can they not be examining? 	can I not have examined?
can you not have examined?
can she not have examined?
can we not have examined?
can you not have examined?
can they not have examined? 	can I not have been examining?
can you not have been examining?
can she not have been examining?
can we not have been examining?
can you not have been examining?
can they not have been examining?