ought to grass
Verbo regular: grass - grassed- grassed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to grass
you ought to grass
he ought to grass
we ought to grass
you ought to grass
they ought to grass 	I ought to be grassing
you ought to be grassing
he ought to be grassing
we ought to be grassing
you ought to be grassing
they ought to be grassing	I ought to have grassed
you ought to have grassed
he ought to have grassed
we ought to have grassed
you ought to have grassed
they ought to have grassed	I ought to have been grassing
you ought to have been grassing
he ought to have been grassing
we ought to have been grassing
you ought to have been grassing
they ought to have been grassing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to grass
you oughtn't to grass
he oughtn't to grass
we oughtn't to grass
you oughtn't to grass
they oughtn't to grass 	I oughtn't to be grassing
you oughtn't to be grassing
he oughtn't to be grassing
we oughtn't to be grassing
you oughtn't to be grassing
they oughtn't to be grassing	I oughtn't to have grassed
you oughtn't to have grassed
he oughtn't to have grassed
we oughtn't to have grassed
you oughtn't to have grassed
they oughtn't to have grassed	I oughtn't to have been grassing
you oughtn't to have been grassing
he oughtn't to have been grassing
we oughtn't to have been grassing
you oughtn't to have been grassing
they oughtn't to have been grassing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I grass?
ought to you grass?
ought to he grass?
ought to we grass?
ought to you grass?
ought to they grass? 	ought to I be grassing?
ought to you be grassing?
ought to he be grassing?
ought to we be grassing?
ought to you be grassing?
ought to they be grassing? 	ought to I have grassed?
ought to you have grassed?
ought to he have grassed?
ought to we have grassed?
ought to you have grassed?
ought to they have grassed? 	ought to I have been grassing?
ought to you have been grassing?
ought to he have been grassing?
ought to we have been grassing?
ought to you have been grassing?
ought to they have been grassing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to grass?
oughtn't you to grass?
oughtn't he to grass?
oughtn't we to grass?
oughtn't you to grass?
oughtn't they to grass? 	oughtn't I to be grassing?
oughtn't you to be grassing?
oughtn't he to be grassing?
oughtn't we to be grassing?
oughtn't you to be grassing?
oughtn't they to be grassing? 	oughtn't I to have grassed?
oughtn't you to have grassed?
oughtn't he to have grassed?
oughtn't we to have grassed?
oughtn't you to have grassed?
oughtn't they to have grassed? 	oughtn't I to have been grassing?
oughtn't you to have been grassing?
oughtn't he to have been grassing?
oughtn't we to have been grassing?
oughtn't you to have been grassing?
oughtn't they to have been grassing?