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 ought not to prop you ought not to prop he ought not to prop we ought not to prop you ought not to prop they ought not to prop	I ought not to propping you ought not to propping he ought not to propping we ought not to propping you ought not to propping they ought not to propping
Perfect	V-ing perfect
I ought not to have propped you ought not to have propped he ought not to have propped we ought not to have propped you ought not to have propped they ought not to have propped	I ought not to have been propping you ought not to have been propping he ought not to have been propping we ought not to have been propping you ought not to have been propping they ought not 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
ought I not to prop? ought you not to prop? ought he not to prop? ought we not to prop? ought you not to prop? ought they not to prop?	ought I not to be propping? ought you not to be propping? ought he not to be propping? ought we not to be propping? ought you not to be propping? ought they not to be propping?
Perfect	V-ing perfect
ought I not to have propped? ought you not to have propped? ought he not to have propped? ought we not to have propped? ought you not to have propped? ought they not to have propped?	ought I not to have been propping? ought you not to have been propping? ought he not to have been propping? ought we not to have been propping? ought you not to have been propping? ought they not to have been propping?