I ought to infest you ought to infest she ought to infest we ought to infest you ought to infest they ought to infest
V-ing form
I ought to be infesting you ought to be infesting she ought to be infesting we ought to be infesting you ought to be infesting they ought to be infesting
Perfect
I ought to have infested you ought to have infested she ought to have infested we ought to have infested you ought to have infested they ought to have infested
V-ing perfect
I ought to have been infesting you ought to have been infesting she ought to have been infesting we ought to have been infesting you ought to have been infesting they ought to have been infesting
Negation
Simple form
I oughtn't to infest you oughtn't to infest she oughtn't to infest we oughtn't to infest you oughtn't to infest they oughtn't to infest
V-ing form
I oughtn't to be infesting you oughtn't to be infesting she oughtn't to be infesting we oughtn't to be infesting you oughtn't to be infesting they oughtn't to be infesting
Perfect
I oughtn't to have infested you oughtn't to have infested she oughtn't to have infested we oughtn't to have infested you oughtn't to have infested they oughtn't to have infested
V-ing perfect
I oughtn't to have been infesting you oughtn't to have been infesting she oughtn't to have been infesting we oughtn't to have been infesting you oughtn't to have been infesting they oughtn't to have been infesting
Interrogative form
Simple form
ought to I infest? ought to you infest? ought to she infest? ought to we infest? ought to you infest? ought to they infest?
V-ing form
ought to I be infesting? ought to you be infesting? ought to she be infesting? ought to we be infesting? ought to you be infesting? ought to they be infesting?
Perfect
ought to I have infested? ought to you have infested? ought to she have infested? ought to we have infested? ought to you have infested? ought to they have infested?
V-ing perfect
ought to I have been infesting? ought to you have been infesting? ought to she have been infesting? ought to we have been infesting? ought to you have been infesting? ought to they have been infesting?
Interro-negative form
Simple form
oughtn't I to infest? oughtn't you to infest? oughtn't she to infest? oughtn't we to infest? oughtn't you to infest? oughtn't they to infest?
V-ing form
oughtn't I to be infesting? oughtn't you to be infesting? oughtn't she to be infesting? oughtn't we to be infesting? oughtn't you to be infesting? oughtn't they to be infesting?
Perfect
oughtn't I to have infested? oughtn't you to have infested? oughtn't she to have infested? oughtn't we to have infested? oughtn't you to have infested? oughtn't they to have infested?
V-ing perfect
oughtn't I to have been infesting? oughtn't you to have been infesting? oughtn't she to have been infesting? oughtn't we to have been infesting? oughtn't you to have been infesting? oughtn't they to have been infesting?