English verb conjugation
CAN TWEAK

Regular verb: tweak - tweaked - tweaked

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?