English verb conjugation
OUGHT TO EXCUSE

Regular verb: excuse - excused - excused

Affirmation

Simple form	V-ing form
I ought to excuse you ought to excuse she ought to excuse we ought to excuse you ought to excuse they ought to excuse	I ought to be excusing you ought to be excusing she ought to be excusing we ought to be excusing you ought to be excusing they ought to be excusing
Perfect	V-ing perfect
I ought to have excused you ought to have excused she ought to have excused we ought to have excused you ought to have excused they ought to have excused	I ought to have been excusing you ought to have been excusing she ought to have been excusing we ought to have been excusing you ought to have been excusing they ought to have been excusing

Negation

Simple form	V-ing form
I ought not to excuse you ought not to excuse she ought not to excuse we ought not to excuse you ought not to excuse they ought not to excuse	I ought not to excusing you ought not to excusing she ought not to excusing we ought not to excusing you ought not to excusing they ought not to excusing
Perfect	V-ing perfect
I ought not to have excused you ought not to have excused she ought not to have excused we ought not to have excused you ought not to have excused they ought not to have excused	I ought not to have been excusing you ought not to have been excusing she ought not to have been excusing we ought not to have been excusing you ought not to have been excusing they ought not to have been excusing

Interrogative form

Simple form	V-ing form
ought to I excuse? ought to you excuse? ought to she excuse? ought to we excuse? ought to you excuse? ought to they excuse?	ought to I be excusing? ought to you be excusing? ought to she be excusing? ought to we be excusing? ought to you be excusing? ought to they be excusing?
Perfect	V-ing perfect
ought to I have excused? ought to you have excused? ought to she have excused? ought to we have excused? ought to you have excused? ought to they have excused?	ought to I have been excusing? ought to you have been excusing? ought to she have been excusing? ought to we have been excusing? ought to you have been excusing? ought to they have been excusing?

Interro-negative form

Simple form	V-ing form
ought I not to excuse? ought you not to excuse? ought she not to excuse? ought we not to excuse? ought you not to excuse? ought they not to excuse?	ought I not to be excusing? ought you not to be excusing? ought she not to be excusing? ought we not to be excusing? ought you not to be excusing? ought they not to be excusing?
Perfect	V-ing perfect
ought I not to have excused? ought you not to have excused? ought she not to have excused? ought we not to have excused? ought you not to have excused? ought they not to have excused?	ought I not to have been excusing? ought you not to have been excusing? ought she not to have been excusing? ought we not to have been excusing? ought you not to have been excusing? ought they not to have been excusing?