may systematise
Verbo regular: systematise - systematised- systematised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may systematise
you may systematise
he may systematise
we may systematise
you may systematise
they may systematise 	I may be systematising
you may be systematising
he may be systematising
we may be systematising
you may be systematising
they may be systematising	I may have systematised
you may have systematised
he may have systematised
we may have systematised
you may have systematised
they may have systematised	I may have been systematising
you may have been systematising
he may have been systematising
we may have been systematising
you may have been systematising
they may have been systematising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not systematise
you may not systematise
he may not systematise
we may not systematise
you may not systematise
they may not systematise 	I may not be systematising
you may not be systematising
he may not be systematising
we may not be systematising
you may not be systematising
they may not be systematising	I may not have systematised
you may not have systematised
he may not have systematised
we may not have systematised
you may not have systematised
they may not have systematised	I may not have been systematising
you may not have been systematising
he may not have been systematising
we may not have been systematising
you may not have been systematising
they may not have been systematising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I systematise?
may you systematise?
may he systematise?
may we systematise?
may you systematise?
may they systematise? 	may I be systematising?
may you be systematising?
may he be systematising?
may we be systematising?
may you be systematising?
may they be systematising? 	may I have systematised?
may you have systematised?
may he have systematised?
may we have systematised?
may you have systematised?
may they have systematised? 	may I have been systematising?
may you have been systematising?
may he have been systematising?
may we have been systematising?
may you have been systematising?
may they have been systematising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not systematise?
may you not systematise?
may he not systematise?
may we not systematise?
may you not systematise?
may they not systematise? 	may I not be systematising?
may you not be systematising?
may he not be systematising?
may we not be systematising?
may you not be systematising?
may they not be systematising? 	may I not have systematised?
may you not have systematised?
may he not have systematised?
may we not have systematised?
may you not have systematised?
may they not have systematised? 	may I not have been systematising?
may you not have been systematising?
may he not have been systematising?
may we not have been systematising?
may you not have been systematising?
may they not have been systematising?