ought to trill
Regular verb: trill - trilled- trilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to trill
you ought to trill
he ought to trill
we ought to trill
you ought to trill
they ought to trill 	I ought to be trilling
you ought to be trilling
he ought to be trilling
we ought to be trilling
you ought to be trilling
they ought to be trilling	I ought to have trilled
you ought to have trilled
he ought to have trilled
we ought to have trilled
you ought to have trilled
they ought to have trilled	I ought to have been trilling
you ought to have been trilling
he ought to have been trilling
we ought to have been trilling
you ought to have been trilling
they ought to have been trilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to trill
you oughtn't to trill
he oughtn't to trill
we oughtn't to trill
you oughtn't to trill
they oughtn't to trill 	I oughtn't to be trilling
you oughtn't to be trilling
he oughtn't to be trilling
we oughtn't to be trilling
you oughtn't to be trilling
they oughtn't to be trilling	I oughtn't to have trilled
you oughtn't to have trilled
he oughtn't to have trilled
we oughtn't to have trilled
you oughtn't to have trilled
they oughtn't to have trilled	I oughtn't to have been trilling
you oughtn't to have been trilling
he oughtn't to have been trilling
we oughtn't to have been trilling
you oughtn't to have been trilling
they oughtn't to have been trilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I trill?
ought to you trill?
ought to he trill?
ought to we trill?
ought to you trill?
ought to they trill? 	ought to I be trilling?
ought to you be trilling?
ought to he be trilling?
ought to we be trilling?
ought to you be trilling?
ought to they be trilling? 	ought to I have trilled?
ought to you have trilled?
ought to he have trilled?
ought to we have trilled?
ought to you have trilled?
ought to they have trilled? 	ought to I have been trilling?
ought to you have been trilling?
ought to he have been trilling?
ought to we have been trilling?
ought to you have been trilling?
ought to they have been trilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to trill?
oughtn't you to trill?
oughtn't he to trill?
oughtn't we to trill?
oughtn't you to trill?
oughtn't they to trill? 	oughtn't I to be trilling?
oughtn't you to be trilling?
oughtn't he to be trilling?
oughtn't we to be trilling?
oughtn't you to be trilling?
oughtn't they to be trilling? 	oughtn't I to have trilled?
oughtn't you to have trilled?
oughtn't he to have trilled?
oughtn't we to have trilled?
oughtn't you to have trilled?
oughtn't they to have trilled? 	oughtn't I to have been trilling?
oughtn't you to have been trilling?
oughtn't he to have been trilling?
oughtn't we to have been trilling?
oughtn't you to have been trilling?
oughtn't they to have been trilling?