English verb conjugation
SHOULD CRAB

Regular verb: crab - crabbed - crabbed

Affirmation

Simple form	V-ing form
I should crab you should crab he should crab we should crab you should crab they should crab	I should be crabbing you should be crabbing he should be crabbing we should be crabbing you should be crabbing they should be crabbing
Perfect	V-ing perfect
I should have crabbed you should have crabbed he should have crabbed we should have crabbed you should have crabbed they should have crabbed	I should have been crabbing you should have been crabbing he should have been crabbing we should have been crabbing you should have been crabbing they should have been crabbing

Negation

Simple form	V-ing form
I should not crab you should not crab he should not crab we should not crab you should not crab they should not crab	I should not be crabbing you should not be crabbing he should not be crabbing we should not be crabbing you should not be crabbing they should not be crabbing
Perfect	V-ing perfect
I should not have crabbed you should not have crabbed he should not have crabbed we should not have crabbed you should not have crabbed they should not have crabbed	I should not have been crabbing you should not have been crabbing he should not have been crabbing we should not have been crabbing you should not have been crabbing they should not have been crabbing

Interrogative form

Simple form	V-ing form
should I crab? should you crab? should he crab? should we crab? should you crab? should they crab?	should I be crabbing? should you be crabbing? should he be crabbing? should we be crabbing? should you be crabbing? should they be crabbing?
Perfect	V-ing perfect
should I have crabbed? should you have crabbed? should he have crabbed? should we have crabbed? should you have crabbed? should they have crabbed?	should I have been crabbing? should you have been crabbing? should he have been crabbing? should we have been crabbing? should you have been crabbing? should they have been crabbing?

Interro-negative form

Simple form	V-ing form
should I not crab? should you not crab? should he not crab? should we not crab? should you not crab? should they not crab?	should I not be crabbing? should you not be crabbing? should he not be crabbing? should we not be crabbing? should you not be crabbing? should they not be crabbing?
Perfect	V-ing perfect
should I not have crabbed? should you not have crabbed? should he not have crabbed? should we not have crabbed? should you not have crabbed? should they not have crabbed?	should I not have been crabbing? should you not have been crabbing? should he not have been crabbing? should we not have been crabbing? should you not have been crabbing? should they not have been crabbing?