should tweak
Regular verb: tweak - tweaked- tweaked

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not tweak
you should not tweak
he should not tweak
we should not tweak
you should not tweak
they should not tweak 	I should not be tweaking
you should not be tweaking
he should not be tweaking
we should not be tweaking
you should not be tweaking
they should not be tweaking	I should not have tweaked
you should not have tweaked
he should not have tweaked
we should not have tweaked
you should not have tweaked
they should not have tweaked	I should not have been tweaking
you should not have been tweaking
he should not have been tweaking
we should not have been tweaking
you should not have been tweaking
they should not 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 	
should I not tweak?
should you not tweak?
should he not tweak?
should we not tweak?
should you not tweak?
should they not tweak? 	should I not be tweaking?
should you not be tweaking?
should he not be tweaking?
should we not be tweaking?
should you not be tweaking?
should they not be tweaking? 	should I not have tweaked?
should you not have tweaked?
should he not have tweaked?
should we not have tweaked?
should you not have tweaked?
should they not have tweaked? 	should I not have been tweaking?
should you not have been tweaking?
should he not have been tweaking?
should we not have been tweaking?
should you not have been tweaking?
should they not have been tweaking?