English verb conjugation
OUGHT TO SCREECH

Regular verb: screech - screeched - screeched

Affirmation

Simple form	V-ing form
I ought to screech you ought to screech he ought to screech we ought to screech you ought to screech they ought to screech	I ought to be screeching you ought to be screeching he ought to be screeching we ought to be screeching you ought to be screeching they ought to be screeching
Perfect	V-ing perfect
I ought to have screeched you ought to have screeched he ought to have screeched we ought to have screeched you ought to have screeched they ought to have screeched	I ought to have been screeching you ought to have been screeching he ought to have been screeching we ought to have been screeching you ought to have been screeching they ought to have been screeching

Negation

Simple form	V-ing form
I oughtn't to screech you oughtn't to screech he oughtn't to screech we oughtn't to screech you oughtn't to screech they oughtn't to screech	I oughtn't to be screeching you oughtn't to be screeching he oughtn't to be screeching we oughtn't to be screeching you oughtn't to be screeching they oughtn't to be screeching
Perfect	V-ing perfect
I oughtn't to have screeched you oughtn't to have screeched he oughtn't to have screeched we oughtn't to have screeched you oughtn't to have screeched they oughtn't to have screeched	I oughtn't to have been screeching you oughtn't to have been screeching he oughtn't to have been screeching we oughtn't to have been screeching you oughtn't to have been screeching they oughtn't to have been screeching

Interrogative form

Simple form	V-ing form
ought to I screech? ought to you screech? ought to he screech? ought to we screech? ought to you screech? ought to they screech?	ought to I be screeching? ought to you be screeching? ought to he be screeching? ought to we be screeching? ought to you be screeching? ought to they be screeching?
Perfect	V-ing perfect
ought to I have screeched? ought to you have screeched? ought to he have screeched? ought to we have screeched? ought to you have screeched? ought to they have screeched?	ought to I have been screeching? ought to you have been screeching? ought to he have been screeching? ought to we have been screeching? ought to you have been screeching? ought to they have been screeching?

Interro-negative form

Simple form	V-ing form
oughtn't I to screech? oughtn't you to screech? oughtn't he to screech? oughtn't we to screech? oughtn't you to screech? oughtn't they to screech?	oughtn't I to be screeching? oughtn't you to be screeching? oughtn't he to be screeching? oughtn't we to be screeching? oughtn't you to be screeching? oughtn't they to be screeching?
Perfect	V-ing perfect
oughtn't I to have screeched? oughtn't you to have screeched? oughtn't he to have screeched? oughtn't we to have screeched? oughtn't you to have screeched? oughtn't they to have screeched?	oughtn't I to have been screeching? oughtn't you to have been screeching? oughtn't he to have been screeching? oughtn't we to have been screeching? oughtn't you to have been screeching? oughtn't they to have been screeching?