English verb conjugation
SHOULD TIMBER

Regular verb: timber - timbered - timbered

Affirmation

Simple form	V-ing form
I should timber you should timber she should timber we should timber you should timber they should timber	I should be timbering you should be timbering she 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 she 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 she 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 she 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 she 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 she 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 she 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 she timber? should we timber? should you timber? should they timber?	should I be timbering? should you be timbering? should she 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 she 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 she 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 she 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 she 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 she 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 she not have been timbering? should we not have been timbering? should you not have been timbering? should they not have been timbering?