Coniugazione del verbo inglese
OUGHT TO HAPPEN

Verbo regolare: happen - happened - happened

Affermazione

Forma semplice	Forma con V-ing
- - it ought to happen - - -	- - it ought to be happening - - -
Perfetto	Perfetto con V-ing
- - it ought to have happened - - -	- - it ought to have been happening - - -

Negazione

Forma semplice	Forma con V-ing
- - it oughtn't to happen - - -	- - it oughtn't to be happening - - -
Perfetto	Perfetto con V-ing
- - it oughtn't to have happened - - -	- - it oughtn't to have been happening - - -

Forma interrogativa

Forma semplice	Forma con V-ing
- - ought to it happen? - - -	- - ought to it be happening? - - -
Perfetto	Perfetto con V-ing
- - ought to it have happened? - - -	- - ought to it have been happening? - - -

Forma interro-negativa

Forma semplice	Forma con V-ing
- - oughtn't it to happen? - - -	- - oughtn't it to be happening? - - -
Perfetto	Perfetto con V-ing
- - oughtn't it to have happened? - - -	- - oughtn't it to have been happening? - - -