I can tweak you can tweak he can tweak we can tweak you can tweak they can tweak
Forma com V-ing
I can be tweaking you can be tweaking he can be tweaking we can be tweaking you can be tweaking they can be tweaking
Perfeito
I can have tweaked you can have tweaked he can have tweaked we can have tweaked you can have tweaked they can have tweaked
Perfeito com V-ing
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
I can't tweak you can't tweak he can't tweak we can't tweak you can't tweak they can't tweak
Forma com V-ing
I can't be tweaking you can't be tweaking he can't be tweaking we can't be tweaking you can't be tweaking they can't be tweaking
Perfeito
I can't have tweaked you can't have tweaked he can't have tweaked we can't have tweaked you can't have tweaked they can't have tweaked
Perfeito com V-ing
I can't have been tweaking you can't have been tweaking he can't have been tweaking we can't have been tweaking you can't have been tweaking they can't have been tweaking
Forma interrogativa
Forma simple
can I tweak? can you tweak? can he tweak? can we tweak? can you tweak? can they tweak?
Forma com V-ing
can I be tweaking? can you be tweaking? can he be tweaking? can we be tweaking? can you be tweaking? can they be tweaking?
Perfeito
can I have tweaked? can you have tweaked? can he have tweaked? can we have tweaked? can you have tweaked? can they have tweaked?
Perfeito com V-ing
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
can't I tweak? can't you tweak? can't he tweak? can't we tweak? can't you tweak? can't they tweak?
Forma com V-ing
can't I be tweaking? can't you be tweaking? can't he be tweaking? can't we be tweaking? can't you be tweaking? can't they be tweaking?
Perfeito
can't I have tweaked? can't you have tweaked? can't he have tweaked? can't we have tweaked? can't you have tweaked? can't they have tweaked?
Perfeito com V-ing
can't I have been tweaking? can't you have been tweaking? can't he have been tweaking? can't we have been tweaking? can't you have been tweaking? can't they have been tweaking?