English verb conjugation
SHOULD TWITCH

Regular verb: twitch - twitched - twitched

Affirmation

Simple form	V-ing form
I should twitch you should twitch he should twitch we should twitch you should twitch they should twitch	I should be twitching you should be twitching he should be twitching we should be twitching you should be twitching they should be twitching
Perfect	V-ing perfect
I should have twitched you should have twitched he should have twitched we should have twitched you should have twitched they should have twitched	I should have been twitching you should have been twitching he should have been twitching we should have been twitching you should have been twitching they should have been twitching

Negation

Simple form	V-ing form
I should not twitch you should not twitch he should not twitch we should not twitch you should not twitch they should not twitch	I should not be twitching you should not be twitching he should not be twitching we should not be twitching you should not be twitching they should not be twitching
Perfect	V-ing perfect
I should not have twitched you should not have twitched he should not have twitched we should not have twitched you should not have twitched they should not have twitched	I should not have been twitching you should not have been twitching he should not have been twitching we should not have been twitching you should not have been twitching they should not have been twitching

Interrogative form

Simple form	V-ing form
should I twitch? should you twitch? should he twitch? should we twitch? should you twitch? should they twitch?	should I be twitching? should you be twitching? should he be twitching? should we be twitching? should you be twitching? should they be twitching?
Perfect	V-ing perfect
should I have twitched? should you have twitched? should he have twitched? should we have twitched? should you have twitched? should they have twitched?	should I have been twitching? should you have been twitching? should he have been twitching? should we have been twitching? should you have been twitching? should they have been twitching?

Interro-negative form

Simple form	V-ing form
should I not twitch? should you not twitch? should he not twitch? should we not twitch? should you not twitch? should they not twitch?	should I not be twitching? should you not be twitching? should he not be twitching? should we not be twitching? should you not be twitching? should they not be twitching?
Perfect	V-ing perfect
should I not have twitched? should you not have twitched? should he not have twitched? should we not have twitched? should you not have twitched? should they not have twitched?	should I not have been twitching? should you not have been twitching? should he not have been twitching? should we not have been twitching? should you not have been twitching? should they not have been twitching?