English verb conjugation
SHOULD TIMBER

Regular verb: timber - timbered - timbered

Affirmation

Simple form	V-ing form
I should timber you should timber he should timber we should timber you should timber they should timber	I should be timbering you should be timbering he should be timbering we should be timbering you should be timbering they should be timbering
Perfect	V-ing perfect
I should have timbered you should have timbered he should have timbered we should have timbered you should have timbered they should have timbered	I should have been timbering you should have been timbering he should have been timbering we should have been timbering you should have been timbering they should have been timbering

Negation

Simple form	V-ing form
I should not timber you should not timber he should not timber we should not timber you should not timber they should not timber	I should not be timbering you should not be timbering he should not be timbering we should not be timbering you should not be timbering they should not be timbering
Perfect	V-ing perfect
I should not have timbered you should not have timbered he should not have timbered we should not have timbered you should not have timbered they should not have timbered	I should not have been timbering you should not have been timbering he should not have been timbering we should not have been timbering you should not have been timbering they should not have been timbering

Interrogative form

Simple form	V-ing form
should I timber? should you timber? should he timber? should we timber? should you timber? should they timber?	should I be timbering? should you be timbering? should he be timbering? should we be timbering? should you be timbering? should they be timbering?
Perfect	V-ing perfect
should I have timbered? should you have timbered? should he have timbered? should we have timbered? should you have timbered? should they have timbered?	should I have been timbering? should you have been timbering? should he have been timbering? should we have been timbering? should you have been timbering? should they have been timbering?

Interro-negative form

Simple form	V-ing form
should I not timber? should you not timber? should he not timber? should we not timber? should you not timber? should they not timber?	should I not be timbering? should you not be timbering? should he not be timbering? should we not be timbering? should you not be timbering? should they not be timbering?
Perfect	V-ing perfect
should I not have timbered? should you not have timbered? should he not have timbered? should we not have timbered? should you not have timbered? should they not have timbered?	should I not have been timbering? should you not have been timbering? should he not have been timbering? should we not have been timbering? should you not have been timbering? should they not have been timbering?