I ought to approximate you ought to approximate he ought to approximate we ought to approximate you ought to approximate they ought to approximate
V-ing form
I ought to be approximating you ought to be approximating he ought to be approximating we ought to be approximating you ought to be approximating they ought to be approximating
Perfect
I ought to have approximated you ought to have approximated he ought to have approximated we ought to have approximated you ought to have approximated they ought to have approximated
V-ing perfect
I ought to have been approximating you ought to have been approximating he ought to have been approximating we ought to have been approximating you ought to have been approximating they ought to have been approximating
Negation
Simple form
I oughtn't to approximate you oughtn't to approximate he oughtn't to approximate we oughtn't to approximate you oughtn't to approximate they oughtn't to approximate
V-ing form
I oughtn't to be approximating you oughtn't to be approximating he oughtn't to be approximating we oughtn't to be approximating you oughtn't to be approximating they oughtn't to be approximating
Perfect
I oughtn't to have approximated you oughtn't to have approximated he oughtn't to have approximated we oughtn't to have approximated you oughtn't to have approximated they oughtn't to have approximated
V-ing perfect
I oughtn't to have been approximating you oughtn't to have been approximating he oughtn't to have been approximating we oughtn't to have been approximating you oughtn't to have been approximating they oughtn't to have been approximating
Interrogative form
Simple form
ought to I approximate? ought to you approximate? ought to he approximate? ought to we approximate? ought to you approximate? ought to they approximate?
V-ing form
ought to I be approximating? ought to you be approximating? ought to he be approximating? ought to we be approximating? ought to you be approximating? ought to they be approximating?
Perfect
ought to I have approximated? ought to you have approximated? ought to he have approximated? ought to we have approximated? ought to you have approximated? ought to they have approximated?
V-ing perfect
ought to I have been approximating? ought to you have been approximating? ought to he have been approximating? ought to we have been approximating? ought to you have been approximating? ought to they have been approximating?
Interro-negative form
Simple form
oughtn't I to approximate? oughtn't you to approximate? oughtn't he to approximate? oughtn't we to approximate? oughtn't you to approximate? oughtn't they to approximate?
V-ing form
oughtn't I to be approximating? oughtn't you to be approximating? oughtn't he to be approximating? oughtn't we to be approximating? oughtn't you to be approximating? oughtn't they to be approximating?
Perfect
oughtn't I to have approximated? oughtn't you to have approximated? oughtn't he to have approximated? oughtn't we to have approximated? oughtn't you to have approximated? oughtn't they to have approximated?
V-ing perfect
oughtn't I to have been approximating? oughtn't you to have been approximating? oughtn't he to have been approximating? oughtn't we to have been approximating? oughtn't you to have been approximating? oughtn't they to have been approximating?