English verb conjugation
SHOULD TITTER

Regular verb: titter - tittered - tittered

Affirmation

Simple form	V-ing form
I should titter you should titter he should titter we should titter you should titter they should titter	I should be tittering you should be tittering he should be tittering we should be tittering you should be tittering they should be tittering
Perfect	V-ing perfect
I should have tittered you should have tittered he should have tittered we should have tittered you should have tittered they should have tittered	I should have been tittering you should have been tittering he should have been tittering we should have been tittering you should have been tittering they should have been tittering

Negation

Simple form	V-ing form
I should not titter you should not titter he should not titter we should not titter you should not titter they should not titter	I should not be tittering you should not be tittering he should not be tittering we should not be tittering you should not be tittering they should not be tittering
Perfect	V-ing perfect
I should not have tittered you should not have tittered he should not have tittered we should not have tittered you should not have tittered they should not have tittered	I should not have been tittering you should not have been tittering he should not have been tittering we should not have been tittering you should not have been tittering they should not have been tittering

Interrogative form

Simple form	V-ing form
should I titter? should you titter? should he titter? should we titter? should you titter? should they titter?	should I be tittering? should you be tittering? should he be tittering? should we be tittering? should you be tittering? should they be tittering?
Perfect	V-ing perfect
should I have tittered? should you have tittered? should he have tittered? should we have tittered? should you have tittered? should they have tittered?	should I have been tittering? should you have been tittering? should he have been tittering? should we have been tittering? should you have been tittering? should they have been tittering?

Interro-negative form

Simple form	V-ing form
should I not titter? should you not titter? should he not titter? should we not titter? should you not titter? should they not titter?	should I not be tittering? should you not be tittering? should he not be tittering? should we not be tittering? should you not be tittering? should they not be tittering?
Perfect	V-ing perfect
should I not have tittered? should you not have tittered? should he not have tittered? should we not have tittered? should you not have tittered? should they not have tittered?	should I not have been tittering? should you not have been tittering? should he not have been tittering? should we not have been tittering? should you not have been tittering? should they not have been tittering?