English verb conjugation
OUGHT TO PROP

Regular verb: prop - propped - propped

Affirmation

Simple form	V-ing form
I ought to prop you ought to prop he ought to prop we ought to prop you ought to prop they ought to prop	I ought to be propping you ought to be propping he ought to be propping we ought to be propping you ought to be propping they ought to be propping
Perfect	V-ing perfect
I ought to have propped you ought to have propped he ought to have propped we ought to have propped you ought to have propped they ought to have propped	I ought to have been propping you ought to have been propping he ought to have been propping we ought to have been propping you ought to have been propping they ought to have been propping

Negation

Simple form	V-ing form
I oughtn't to prop you oughtn't to prop he oughtn't to prop we oughtn't to prop you oughtn't to prop they oughtn't to prop	I oughtn't to be propping you oughtn't to be propping he oughtn't to be propping we oughtn't to be propping you oughtn't to be propping they oughtn't to be propping
Perfect	V-ing perfect
I oughtn't to have propped you oughtn't to have propped he oughtn't to have propped we oughtn't to have propped you oughtn't to have propped they oughtn't to have propped	I oughtn't to have been propping you oughtn't to have been propping he oughtn't to have been propping we oughtn't to have been propping you oughtn't to have been propping they oughtn't to have been propping

Interrogative form

Simple form	V-ing form
ought to I prop? ought to you prop? ought to he prop? ought to we prop? ought to you prop? ought to they prop?	ought to I be propping? ought to you be propping? ought to he be propping? ought to we be propping? ought to you be propping? ought to they be propping?
Perfect	V-ing perfect
ought to I have propped? ought to you have propped? ought to he have propped? ought to we have propped? ought to you have propped? ought to they have propped?	ought to I have been propping? ought to you have been propping? ought to he have been propping? ought to we have been propping? ought to you have been propping? ought to they have been propping?

Interro-negative form

Simple form	V-ing form
oughtn't I to prop? oughtn't you to prop? oughtn't he to prop? oughtn't we to prop? oughtn't you to prop? oughtn't they to prop?	oughtn't I to be propping? oughtn't you to be propping? oughtn't he to be propping? oughtn't we to be propping? oughtn't you to be propping? oughtn't they to be propping?
Perfect	V-ing perfect
oughtn't I to have propped? oughtn't you to have propped? oughtn't he to have propped? oughtn't we to have propped? oughtn't you to have propped? oughtn't they to have propped?	oughtn't I to have been propping? oughtn't you to have been propping? oughtn't he to have been propping? oughtn't we to have been propping? oughtn't you to have been propping? oughtn't they to have been propping?