can tweak
Verbo regular: tweak - tweaked- tweaked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can tweak
you can tweak
he can tweak
we can tweak
you can tweak
they can tweak 	I can be tweaking
you can be tweaking
he can be tweaking
we can be tweaking
you can be tweaking
they can be tweaking	I can have tweaked
you can have tweaked
he can have tweaked
we can have tweaked
you can have tweaked
they can have tweaked	I can have been tweaking
you can have been tweaking
he can have been tweaking
we can have been tweaking
you can have been tweaking
they can have been tweaking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot tweak
you cannot tweak
he cannot tweak
we cannot tweak
you cannot tweak
they cannot tweak 	I cannot be tweaking
you cannot be tweaking
he cannot be tweaking
we cannot be tweaking
you cannot be tweaking
they cannot be tweaking	I cannot have tweaked
you cannot have tweaked
he cannot have tweaked
we cannot have tweaked
you cannot have tweaked
they cannot have tweaked	I cannot have been tweaking
you cannot have been tweaking
he cannot have been tweaking
we cannot have been tweaking
you cannot have been tweaking
they cannot have been tweaking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I tweak?
can you tweak?
can he tweak?
can we tweak?
can you tweak?
can they tweak? 	can I be tweaking?
can you be tweaking?
can he be tweaking?
can we be tweaking?
can you be tweaking?
can they be tweaking? 	can I have tweaked?
can you have tweaked?
can he have tweaked?
can we have tweaked?
can you have tweaked?
can they have tweaked? 	can I have been tweaking?
can you have been tweaking?
can he have been tweaking?
can we have been tweaking?
can you have been tweaking?
can they have been tweaking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not tweak?
can you not tweak?
can he not tweak?
can we not tweak?
can you not tweak?
can they not tweak? 	can I not be tweaking?
can you not be tweaking?
can he not be tweaking?
can we not be tweaking?
can you not be tweaking?
can they not be tweaking? 	can I not have tweaked?
can you not have tweaked?
can he not have tweaked?
can we not have tweaked?
can you not have tweaked?
can they not have tweaked? 	can I not have been tweaking?
can you not have been tweaking?
can he not have been tweaking?
can we not have been tweaking?
can you not have been tweaking?
can they not have been tweaking?