could obligate
Regular verb: obligate - obligated- obligated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could obligate
you could obligate
he could obligate
we could obligate
you could obligate
they could obligate 	I could be obligating
you could be obligating
he could be obligating
we could be obligating
you could be obligating
they could be obligating	I could have obligated
you could have obligated
he could have obligated
we could have obligated
you could have obligated
they could have obligated	I could have been obligating
you could have been obligating
he could have been obligating
we could have been obligating
you could have been obligating
they could have been obligating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't obligate
you couldn't obligate
he couldn't obligate
we couldn't obligate
you couldn't obligate
they couldn't obligate 	I couldn't be obligating
you couldn't be obligating
he couldn't be obligating
we couldn't be obligating
you couldn't be obligating
they couldn't be obligating	I couldn't have obligated
you couldn't have obligated
he couldn't have obligated
we couldn't have obligated
you couldn't have obligated
they couldn't have obligated	I couldn't have been obligating
you couldn't have been obligating
he couldn't have been obligating
we couldn't have been obligating
you couldn't have been obligating
they couldn't have been obligating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I obligate?
could you obligate?
could he obligate?
could we obligate?
could you obligate?
could they obligate? 	could I be obligating?
could you be obligating?
could he be obligating?
could we be obligating?
could you be obligating?
could they be obligating? 	could I have obligated?
could you have obligated?
could he have obligated?
could we have obligated?
could you have obligated?
could they have obligated? 	could I have been obligating?
could you have been obligating?
could he have been obligating?
could we have been obligating?
could you have been obligating?
could they have been obligating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I obligate?
couldn't you obligate?
couldn't he obligate?
couldn't we obligate?
couldn't you obligate?
couldn't they obligate? 	couldn't I be obligating?
couldn't you be obligating?
couldn't he be obligating?
couldn't we be obligating?
couldn't you be obligating?
couldn't they be obligating? 	couldn't I have obligated?
couldn't you have obligated?
couldn't he have obligated?
couldn't we have obligated?
couldn't you have obligated?
couldn't they have obligated? 	couldn't I have been obligating?
couldn't you have been obligating?
couldn't he have been obligating?
couldn't we have been obligating?
couldn't you have been obligating?
couldn't they have been obligating?