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 can't tweak you can't tweak he can't tweak we can't tweak you can't tweak they can't tweak	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
Perfect	V-ing perfect
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	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

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't I tweak? can't you tweak? can't he tweak? can't we tweak? can't you tweak? can't they tweak?	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?
Perfect	V-ing perfect
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?	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?