I ought to contribute you ought to contribute he ought to contribute we ought to contribute you ought to contribute they ought to contribute
Forme en V-ing
I ought to be contributing you ought to be contributing he ought to be contributing we ought to be contributing you ought to be contributing they ought to be contributing
Perfect
I ought to have contributed you ought to have contributed he ought to have contributed we ought to have contributed you ought to have contributed they ought to have contributed
Perfect en V-ing
I ought to have been contributing you ought to have been contributing he ought to have been contributing we ought to have been contributing you ought to have been contributing they ought to have been contributing
Négation
Forme simple
I ought not to contribute you ought not to contribute he ought not to contribute we ought not to contribute you ought not to contribute they ought not to contribute
Forme en V-ing
I ought not to contributing you ought not to contributing he ought not to contributing we ought not to contributing you ought not to contributing they ought not to contributing
Perfect
I ought not to have contributed you ought not to have contributed he ought not to have contributed we ought not to have contributed you ought not to have contributed they ought not to have contributed
Perfect en V-ing
I ought not to have been contributing you ought not to have been contributing he ought not to have been contributing we ought not to have been contributing you ought not to have been contributing they ought not to have been contributing
Forme interrogative
Forme simple
ought to I contribute? ought to you contribute? ought to he contribute? ought to we contribute? ought to you contribute? ought to they contribute?
Forme en V-ing
ought to I be contributing? ought to you be contributing? ought to he be contributing? ought to we be contributing? ought to you be contributing? ought to they be contributing?
Perfect
ought to I have contributed? ought to you have contributed? ought to he have contributed? ought to we have contributed? ought to you have contributed? ought to they have contributed?
Perfect en V-ing
ought to I have been contributing? ought to you have been contributing? ought to he have been contributing? ought to we have been contributing? ought to you have been contributing? ought to they have been contributing?
Forme interro-négative
Forme simple
ought I not to contribute? ought you not to contribute? ought he not to contribute? ought we not to contribute? ought you not to contribute? ought they not to contribute?
Forme en V-ing
ought I not to be contributing? ought you not to be contributing? ought he not to be contributing? ought we not to be contributing? ought you not to be contributing? ought they not to be contributing?
Perfect
ought I not to have contributed? ought you not to have contributed? ought he not to have contributed? ought we not to have contributed? ought you not to have contributed? ought they not to have contributed?
Perfect en V-ing
ought I not to have been contributing? ought you not to have been contributing? ought he not to have been contributing? ought we not to have been contributing? ought you not to have been contributing? ought they not to have been contributing?