ought to swim
Irregular verb: swim - swam- swum

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to swim
you ought to swim
he ought to swim
we ought to swim
you ought to swim
they ought to swim 	I ought to be swimming
you ought to be swimming
he ought to be swimming
we ought to be swimming
you ought to be swimming
they ought to be swimming	I ought to have swum
you ought to have swum
he ought to have swum
we ought to have swum
you ought to have swum
they ought to have swum	I ought to have been swimming
you ought to have been swimming
he ought to have been swimming
we ought to have been swimming
you ought to have been swimming
they ought to have been swimming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to swim
you ought not to swim
he ought not to swim
we ought not to swim
you ought not to swim
they ought not to swim 	I ought not to swimming
you ought not to swimming
he ought not to swimming
we ought not to swimming
you ought not to swimming
they ought not to swimming	I ought not to have swum
you ought not to have swum
he ought not to have swum
we ought not to have swum
you ought not to have swum
they ought not to have swum	I ought not to have been swimming
you ought not to have been swimming
he ought not to have been swimming
we ought not to have been swimming
you ought not to have been swimming
they ought not to have been swimming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I swim?
ought to you swim?
ought to he swim?
ought to we swim?
ought to you swim?
ought to they swim? 	ought to I be swimming?
ought to you be swimming?
ought to he be swimming?
ought to we be swimming?
ought to you be swimming?
ought to they be swimming? 	ought to I have swum?
ought to you have swum?
ought to he have swum?
ought to we have swum?
ought to you have swum?
ought to they have swum? 	ought to I have been swimming?
ought to you have been swimming?
ought to he have been swimming?
ought to we have been swimming?
ought to you have been swimming?
ought to they have been swimming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to swim?
ought you not to swim?
ought he not to swim?
ought we not to swim?
ought you not to swim?
ought they not to swim? 	ought I not to be swimming?
ought you not to be swimming?
ought he not to be swimming?
ought we not to be swimming?
ought you not to be swimming?
ought they not to be swimming? 	ought I not to have swum?
ought you not to have swum?
ought he not to have swum?
ought we not to have swum?
ought you not to have swum?
ought they not to have swum? 	ought I not to have been swimming?
ought you not to have been swimming?
ought he not to have been swimming?
ought we not to have been swimming?
ought you not to have been swimming?
ought they not to have been swimming?