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

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto 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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to tread
you ought not to tread
he ought not to tread
we ought not to tread
you ought not to tread
they ought not to tread 	I ought not to treading
you ought not to treading
he ought not to treading
we ought not to treading
you ought not to treading
they ought not to treading	I ought not to have trod, trodden
you ought not to have trod, trodden
he ought not to have trod, trodden
we ought not to have trod, trodden
you ought not to have trod, trodden
they ought not to have trod, trodden	I ought not to have been treading
you ought not to have been treading
he ought not to have been treading
we ought not to have been treading
you ought not to have been treading
they ought not to have been treading	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto 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 simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to tread?
ought you not to tread?
ought he not to tread?
ought we not to tread?
ought you not to tread?
ought they not to tread? 	ought I not to be treading?
ought you not to be treading?
ought he not to be treading?
ought we not to be treading?
ought you not to be treading?
ought they not to be treading? 	ought I not to have trod, trodden?
ought you not to have trod, trodden?
ought he not to have trod, trodden?
ought we not to have trod, trodden?
ought you not to have trod, trodden?
ought they not to have trod, trodden? 	ought I not to have been treading?
ought you not to have been treading?
ought he not to have been treading?
ought we not to have been treading?
ought you not to have been treading?
ought they not to have been treading?