I ought to thicken you ought to thicken he ought to thicken we ought to thicken you ought to thicken they ought to thicken
V-ing form
I ought to be thickening you ought to be thickening he ought to be thickening we ought to be thickening you ought to be thickening they ought to be thickening
Perfect
I ought to have thickened you ought to have thickened he ought to have thickened we ought to have thickened you ought to have thickened they ought to have thickened
V-ing perfect
I ought to have been thickening you ought to have been thickening he ought to have been thickening we ought to have been thickening you ought to have been thickening they ought to have been thickening
Negation
Simple form
I ought not to thicken you ought not to thicken he ought not to thicken we ought not to thicken you ought not to thicken they ought not to thicken
V-ing form
I ought not to thickening you ought not to thickening he ought not to thickening we ought not to thickening you ought not to thickening they ought not to thickening
Perfect
I ought not to have thickened you ought not to have thickened he ought not to have thickened we ought not to have thickened you ought not to have thickened they ought not to have thickened
V-ing perfect
I ought not to have been thickening you ought not to have been thickening he ought not to have been thickening we ought not to have been thickening you ought not to have been thickening they ought not to have been thickening
Interrogative form
Simple form
ought to I thicken? ought to you thicken? ought to he thicken? ought to we thicken? ought to you thicken? ought to they thicken?
V-ing form
ought to I be thickening? ought to you be thickening? ought to he be thickening? ought to we be thickening? ought to you be thickening? ought to they be thickening?
Perfect
ought to I have thickened? ought to you have thickened? ought to he have thickened? ought to we have thickened? ought to you have thickened? ought to they have thickened?
V-ing perfect
ought to I have been thickening? ought to you have been thickening? ought to he have been thickening? ought to we have been thickening? ought to you have been thickening? ought to they have been thickening?
Interro-negative form
Simple form
ought I not to thicken? ought you not to thicken? ought he not to thicken? ought we not to thicken? ought you not to thicken? ought they not to thicken?
V-ing form
ought I not to be thickening? ought you not to be thickening? ought he not to be thickening? ought we not to be thickening? ought you not to be thickening? ought they not to be thickening?
Perfect
ought I not to have thickened? ought you not to have thickened? ought he not to have thickened? ought we not to have thickened? ought you not to have thickened? ought they not to have thickened?
V-ing perfect
ought I not to have been thickening? ought you not to have been thickening? ought he not to have been thickening? ought we not to have been thickening? ought you not to have been thickening? ought they not to have been thickening?