should tweak
Regular verb: tweak - tweaked- tweaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd tweak
you'd tweak
she'd tweak
we'd tweak
you'd tweak
they'd tweak 	I'd be tweaking
you'd be tweaking
she'd be tweaking
we'd be tweaking
you'd be tweaking
they'd be tweaking	I should've tweaked
you should've tweaked
she 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
she 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
she 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
she 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
she 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
she 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 she tweak?
should we tweak?
should you tweak?
should they tweak? 	should I be tweaking?
should you be tweaking?
should she be tweaking?
should we be tweaking?
should you be tweaking?
should they be tweaking? 	should I have tweaked?
should you have tweaked?
should she 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 she 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 she 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 she 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 she 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 she have been tweaking?
shouldn't we have been tweaking?
shouldn't you have been tweaking?
shouldn't they have been tweaking?