could relubricate
Regular verb: relubricate - relubricated- relubricated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could relubricate
you could relubricate
he could relubricate
we could relubricate
you could relubricate
they could relubricate 	I could be relubricating
you could be relubricating
he could be relubricating
we could be relubricating
you could be relubricating
they could be relubricating	I could have relubricated
you could have relubricated
he could have relubricated
we could have relubricated
you could have relubricated
they could have relubricated	I could have been relubricating
you could have been relubricating
he could have been relubricating
we could have been relubricating
you could have been relubricating
they could have been relubricating	

Negation 	
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I couldn't relubricate
you couldn't relubricate
he couldn't relubricate
we couldn't relubricate
you couldn't relubricate
they couldn't relubricate 	I couldn't be relubricating
you couldn't be relubricating
he couldn't be relubricating
we couldn't be relubricating
you couldn't be relubricating
they couldn't be relubricating	I couldn't have relubricated
you couldn't have relubricated
he couldn't have relubricated
we couldn't have relubricated
you couldn't have relubricated
they couldn't have relubricated	I couldn't have been relubricating
you couldn't have been relubricating
he couldn't have been relubricating
we couldn't have been relubricating
you couldn't have been relubricating
they couldn't have been relubricating	

Interrogative form 	
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could I relubricate?
could you relubricate?
could he relubricate?
could we relubricate?
could you relubricate?
could they relubricate? 	could I be relubricating?
could you be relubricating?
could he be relubricating?
could we be relubricating?
could you be relubricating?
could they be relubricating? 	could I have relubricated?
could you have relubricated?
could he have relubricated?
could we have relubricated?
could you have relubricated?
could they have relubricated? 	could I have been relubricating?
could you have been relubricating?
could he have been relubricating?
could we have been relubricating?
could you have been relubricating?
could they have been relubricating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I relubricate?
couldn't you relubricate?
couldn't he relubricate?
couldn't we relubricate?
couldn't you relubricate?
couldn't they relubricate? 	couldn't I be relubricating?
couldn't you be relubricating?
couldn't he be relubricating?
couldn't we be relubricating?
couldn't you be relubricating?
couldn't they be relubricating? 	couldn't I have relubricated?
couldn't you have relubricated?
couldn't he have relubricated?
couldn't we have relubricated?
couldn't you have relubricated?
couldn't they have relubricated? 	couldn't I have been relubricating?
couldn't you have been relubricating?
couldn't he have been relubricating?
couldn't we have been relubricating?
couldn't you have been relubricating?
couldn't they have been relubricating?