ought to signal
Regular verb: signal - signalled- signalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to signal
you ought to signal
he ought to signal
we ought to signal
you ought to signal
they ought to signal 	I ought to be signalling
you ought to be signalling
he ought to be signalling
we ought to be signalling
you ought to be signalling
they ought to be signalling	I ought to have signalled
you ought to have signalled
he ought to have signalled
we ought to have signalled
you ought to have signalled
they ought to have signalled	I ought to have been signalling
you ought to have been signalling
he ought to have been signalling
we ought to have been signalling
you ought to have been signalling
they ought to have been signalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to signal
you oughtn't to signal
he oughtn't to signal
we oughtn't to signal
you oughtn't to signal
they oughtn't to signal 	I oughtn't to be signalling
you oughtn't to be signalling
he oughtn't to be signalling
we oughtn't to be signalling
you oughtn't to be signalling
they oughtn't to be signalling	I oughtn't to have signalled
you oughtn't to have signalled
he oughtn't to have signalled
we oughtn't to have signalled
you oughtn't to have signalled
they oughtn't to have signalled	I oughtn't to have been signalling
you oughtn't to have been signalling
he oughtn't to have been signalling
we oughtn't to have been signalling
you oughtn't to have been signalling
they oughtn't to have been signalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I signal?
ought to you signal?
ought to he signal?
ought to we signal?
ought to you signal?
ought to they signal? 	ought to I be signalling?
ought to you be signalling?
ought to he be signalling?
ought to we be signalling?
ought to you be signalling?
ought to they be signalling? 	ought to I have signalled?
ought to you have signalled?
ought to he have signalled?
ought to we have signalled?
ought to you have signalled?
ought to they have signalled? 	ought to I have been signalling?
ought to you have been signalling?
ought to he have been signalling?
ought to we have been signalling?
ought to you have been signalling?
ought to they have been signalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to signal?
oughtn't you to signal?
oughtn't he to signal?
oughtn't we to signal?
oughtn't you to signal?
oughtn't they to signal? 	oughtn't I to be signalling?
oughtn't you to be signalling?
oughtn't he to be signalling?
oughtn't we to be signalling?
oughtn't you to be signalling?
oughtn't they to be signalling? 	oughtn't I to have signalled?
oughtn't you to have signalled?
oughtn't he to have signalled?
oughtn't we to have signalled?
oughtn't you to have signalled?
oughtn't they to have signalled? 	oughtn't I to have been signalling?
oughtn't you to have been signalling?
oughtn't he to have been signalling?
oughtn't we to have been signalling?
oughtn't you to have been signalling?
oughtn't they to have been signalling?