I ought to trip you ought to trip he ought to trip we ought to trip you ought to trip they ought to trip
V-ing form
I ought to be tripping you ought to be tripping he ought to be tripping we ought to be tripping you ought to be tripping they ought to be tripping
Perfect
I ought to have tripped you ought to have tripped he ought to have tripped we ought to have tripped you ought to have tripped they ought to have tripped
V-ing perfect
I ought to have been tripping you ought to have been tripping he ought to have been tripping we ought to have been tripping you ought to have been tripping they ought to have been tripping
Negation
Simple form
I ought not to trip you ought not to trip he ought not to trip we ought not to trip you ought not to trip they ought not to trip
V-ing form
I ought not to tripping you ought not to tripping he ought not to tripping we ought not to tripping you ought not to tripping they ought not to tripping
Perfect
I ought not to have tripped you ought not to have tripped he ought not to have tripped we ought not to have tripped you ought not to have tripped they ought not to have tripped
V-ing perfect
I ought not to have been tripping you ought not to have been tripping he ought not to have been tripping we ought not to have been tripping you ought not to have been tripping they ought not to have been tripping
Interrogative form
Simple form
ought to I trip? ought to you trip? ought to he trip? ought to we trip? ought to you trip? ought to they trip?
V-ing form
ought to I be tripping? ought to you be tripping? ought to he be tripping? ought to we be tripping? ought to you be tripping? ought to they be tripping?
Perfect
ought to I have tripped? ought to you have tripped? ought to he have tripped? ought to we have tripped? ought to you have tripped? ought to they have tripped?
V-ing perfect
ought to I have been tripping? ought to you have been tripping? ought to he have been tripping? ought to we have been tripping? ought to you have been tripping? ought to they have been tripping?
Interro-negative form
Simple form
ought I not to trip? ought you not to trip? ought he not to trip? ought we not to trip? ought you not to trip? ought they not to trip?
V-ing form
ought I not to be tripping? ought you not to be tripping? ought he not to be tripping? ought we not to be tripping? ought you not to be tripping? ought they not to be tripping?
Perfect
ought I not to have tripped? ought you not to have tripped? ought he not to have tripped? ought we not to have tripped? ought you not to have tripped? ought they not to have tripped?
V-ing perfect
ought I not to have been tripping? ought you not to have been tripping? ought he not to have been tripping? ought we not to have been tripping? ought you not to have been tripping? ought they not to have been tripping?