should tweak
Regular verb: tweak - tweaked- tweaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd tweak
you'd tweak
he'd tweak
we'd tweak
you'd tweak
they'd tweak 	I'd be tweaking
you'd be tweaking
he'd be tweaking
we'd be tweaking
you'd be tweaking
they'd be tweaking	I should've tweaked
you should've tweaked
he should've tweaked
we should've tweaked
you should've tweaked
they should've tweaked	I should've been tweaking
you should've been tweaking
he should've been tweaking
we should've been tweaking
you should've been tweaking
they should've been tweaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't tweak
you shouldn't tweak
he shouldn't tweak
we shouldn't tweak
you shouldn't tweak
they shouldn't tweak 	I shouldn't be tweaking
you shouldn't be tweaking
he shouldn't be tweaking
we shouldn't be tweaking
you shouldn't be tweaking
they shouldn't be tweaking	I shouldn't have tweaked
you shouldn't have tweaked
he shouldn't have tweaked
we shouldn't have tweaked
you shouldn't have tweaked
they shouldn't have tweaked	I shouldn't have been tweaking
you shouldn't have been tweaking
he shouldn't have been tweaking
we shouldn't have been tweaking
you shouldn't have been tweaking
they shouldn't have been tweaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I tweak?
should you tweak?
should he tweak?
should we tweak?
should you tweak?
should they tweak? 	should I be tweaking?
should you be tweaking?
should he be tweaking?
should we be tweaking?
should you be tweaking?
should they be tweaking? 	should I have tweaked?
should you have tweaked?
should he have tweaked?
should we have tweaked?
should you have tweaked?
should they have tweaked? 	should I have been tweaking?
should you have been tweaking?
should he have been tweaking?
should we have been tweaking?
should you have been tweaking?
should they have been tweaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I tweak?
shouldn't you tweak?
shouldn't he tweak?
shouldn't we tweak?
shouldn't you tweak?
shouldn't they tweak? 	shouldn't I be tweaking?
shouldn't you be tweaking?
shouldn't he be tweaking?
shouldn't we be tweaking?
shouldn't you be tweaking?
shouldn't they be tweaking? 	shouldn't I have tweaked?
shouldn't you have tweaked?
shouldn't he have tweaked?
shouldn't we have tweaked?
shouldn't you have tweaked?
shouldn't they have tweaked? 	shouldn't I have been tweaking?
shouldn't you have been tweaking?
shouldn't he have been tweaking?
shouldn't we have been tweaking?
shouldn't you have been tweaking?
shouldn't they have been tweaking?