ought to ligate
Regular verb: ligate - ligated- ligated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to ligate
you ought to ligate
he ought to ligate
we ought to ligate
you ought to ligate
they ought to ligate 	I ought to be ligating
you ought to be ligating
he ought to be ligating
we ought to be ligating
you ought to be ligating
they ought to be ligating	I ought to have ligated
you ought to have ligated
he ought to have ligated
we ought to have ligated
you ought to have ligated
they ought to have ligated	I ought to have been ligating
you ought to have been ligating
he ought to have been ligating
we ought to have been ligating
you ought to have been ligating
they ought to have been ligating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to ligate
you ought not to ligate
he ought not to ligate
we ought not to ligate
you ought not to ligate
they ought not to ligate 	I ought not to ligating
you ought not to ligating
he ought not to ligating
we ought not to ligating
you ought not to ligating
they ought not to ligating	I ought not to have ligated
you ought not to have ligated
he ought not to have ligated
we ought not to have ligated
you ought not to have ligated
they ought not to have ligated	I ought not to have been ligating
you ought not to have been ligating
he ought not to have been ligating
we ought not to have been ligating
you ought not to have been ligating
they ought not to have been ligating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I ligate?
ought to you ligate?
ought to he ligate?
ought to we ligate?
ought to you ligate?
ought to they ligate? 	ought to I be ligating?
ought to you be ligating?
ought to he be ligating?
ought to we be ligating?
ought to you be ligating?
ought to they be ligating? 	ought to I have ligated?
ought to you have ligated?
ought to he have ligated?
ought to we have ligated?
ought to you have ligated?
ought to they have ligated? 	ought to I have been ligating?
ought to you have been ligating?
ought to he have been ligating?
ought to we have been ligating?
ought to you have been ligating?
ought to they have been ligating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to ligate?
ought you not to ligate?
ought he not to ligate?
ought we not to ligate?
ought you not to ligate?
ought they not to ligate? 	ought I not to be ligating?
ought you not to be ligating?
ought he not to be ligating?
ought we not to be ligating?
ought you not to be ligating?
ought they not to be ligating? 	ought I not to have ligated?
ought you not to have ligated?
ought he not to have ligated?
ought we not to have ligated?
ought you not to have ligated?
ought they not to have ligated? 	ought I not to have been ligating?
ought you not to have been ligating?
ought he not to have been ligating?
ought we not to have been ligating?
ought you not to have been ligating?
ought they not to have been ligating?