English verb conjugation
SHOULD WHISTLE

Regular verb: whistle - whistled - whistled

Affirmation

Simple form	V-ing form
I should whistle you should whistle he should whistle we should whistle you should whistle they should whistle	I should be whistling you should be whistling he should be whistling we should be whistling you should be whistling they should be whistling
Perfect	V-ing perfect
I should have whistled you should have whistled he should have whistled we should have whistled you should have whistled they should have whistled	I should have been whistling you should have been whistling he should have been whistling we should have been whistling you should have been whistling they should have been whistling

Negation

Simple form	V-ing form
I should not whistle you should not whistle he should not whistle we should not whistle you should not whistle they should not whistle	I should not be whistling you should not be whistling he should not be whistling we should not be whistling you should not be whistling they should not be whistling
Perfect	V-ing perfect
I should not have whistled you should not have whistled he should not have whistled we should not have whistled you should not have whistled they should not have whistled	I should not have been whistling you should not have been whistling he should not have been whistling we should not have been whistling you should not have been whistling they should not have been whistling

Interrogative form

Simple form	V-ing form
should I whistle? should you whistle? should he whistle? should we whistle? should you whistle? should they whistle?	should I be whistling? should you be whistling? should he be whistling? should we be whistling? should you be whistling? should they be whistling?
Perfect	V-ing perfect
should I have whistled? should you have whistled? should he have whistled? should we have whistled? should you have whistled? should they have whistled?	should I have been whistling? should you have been whistling? should he have been whistling? should we have been whistling? should you have been whistling? should they have been whistling?

Interro-negative form

Simple form	V-ing form
should I not whistle? should you not whistle? should he not whistle? should we not whistle? should you not whistle? should they not whistle?	should I not be whistling? should you not be whistling? should he not be whistling? should we not be whistling? should you not be whistling? should they not be whistling?
Perfect	V-ing perfect
should I not have whistled? should you not have whistled? should he not have whistled? should we not have whistled? should you not have whistled? should they not have whistled?	should I not have been whistling? should you not have been whistling? should he not have been whistling? should we not have been whistling? should you not have been whistling? should they not have been whistling?