ought to tread
Verbo irregolare: tread - trod- trod, trodden

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought to tread
you ought to tread
he ought to tread
we ought to tread
you ought to tread
they ought to tread 	I ought to be treading
you ought to be treading
he ought to be treading
we ought to be treading
you ought to be treading
they ought to be treading	I ought to have trod, trodden
you ought to have trod, trodden
he ought to have trod, trodden
we ought to have trod, trodden
you ought to have trod, trodden
they ought to have trod, trodden	I ought to have been treading
you ought to have been treading
he ought to have been treading
we ought to have been treading
you ought to have been treading
they ought to have been treading	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I oughtn't to tread
you oughtn't to tread
he oughtn't to tread
we oughtn't to tread
you oughtn't to tread
they oughtn't to tread 	I oughtn't to be treading
you oughtn't to be treading
he oughtn't to be treading
we oughtn't to be treading
you oughtn't to be treading
they oughtn't to be treading	I oughtn't to have trod, trodden
you oughtn't to have trod, trodden
he oughtn't to have trod, trodden
we oughtn't to have trod, trodden
you oughtn't to have trod, trodden
they oughtn't to have trod, trodden	I oughtn't to have been treading
you oughtn't to have been treading
he oughtn't to have been treading
we oughtn't to have been treading
you oughtn't to have been treading
they oughtn't to have been treading	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought to I tread?
ought to you tread?
ought to he tread?
ought to we tread?
ought to you tread?
ought to they tread? 	ought to I be treading?
ought to you be treading?
ought to he be treading?
ought to we be treading?
ought to you be treading?
ought to they be treading? 	ought to I have trod, trodden?
ought to you have trod, trodden?
ought to he have trod, trodden?
ought to we have trod, trodden?
ought to you have trod, trodden?
ought to they have trod, trodden? 	ought to I have been treading?
ought to you have been treading?
ought to he have been treading?
ought to we have been treading?
ought to you have been treading?
ought to they have been treading? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
oughtn't I to tread?
oughtn't you to tread?
oughtn't he to tread?
oughtn't we to tread?
oughtn't you to tread?
oughtn't they to tread? 	oughtn't I to be treading?
oughtn't you to be treading?
oughtn't he to be treading?
oughtn't we to be treading?
oughtn't you to be treading?
oughtn't they to be treading? 	oughtn't I to have trod, trodden?
oughtn't you to have trod, trodden?
oughtn't he to have trod, trodden?
oughtn't we to have trod, trodden?
oughtn't you to have trod, trodden?
oughtn't they to have trod, trodden? 	oughtn't I to have been treading?
oughtn't you to have been treading?
oughtn't he to have been treading?
oughtn't we to have been treading?
oughtn't you to have been treading?
oughtn't they to have been treading?