could shine
Irregular verb: shine - shined, shone- shined, shone

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could shine
you could shine
he could shine
we could shine
you could shine
they could shine 	I could be shining
you could be shining
he could be shining
we could be shining
you could be shining
they could be shining	I could have shined, shone
you could have shined, shone
he could have shined, shone
we could have shined, shone
you could have shined, shone
they could have shined, shone	I could have been shining
you could have been shining
he could have been shining
we could have been shining
you could have been shining
they could have been shining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't shine
you couldn't shine
he couldn't shine
we couldn't shine
you couldn't shine
they couldn't shine 	I couldn't be shining
you couldn't be shining
he couldn't be shining
we couldn't be shining
you couldn't be shining
they couldn't be shining	I couldn't have shined, shone
you couldn't have shined, shone
he couldn't have shined, shone
we couldn't have shined, shone
you couldn't have shined, shone
they couldn't have shined, shone	I couldn't have been shining
you couldn't have been shining
he couldn't have been shining
we couldn't have been shining
you couldn't have been shining
they couldn't have been shining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I shine?
could you shine?
could he shine?
could we shine?
could you shine?
could they shine? 	could I be shining?
could you be shining?
could he be shining?
could we be shining?
could you be shining?
could they be shining? 	could I have shined, shone?
could you have shined, shone?
could he have shined, shone?
could we have shined, shone?
could you have shined, shone?
could they have shined, shone? 	could I have been shining?
could you have been shining?
could he have been shining?
could we have been shining?
could you have been shining?
could they have been shining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I shine?
couldn't you shine?
couldn't he shine?
couldn't we shine?
couldn't you shine?
couldn't they shine? 	couldn't I be shining?
couldn't you be shining?
couldn't he be shining?
couldn't we be shining?
couldn't you be shining?
couldn't they be shining? 	couldn't I have shined, shone?
couldn't you have shined, shone?
couldn't he have shined, shone?
couldn't we have shined, shone?
couldn't you have shined, shone?
couldn't they have shined, shone? 	couldn't I have been shining?
couldn't you have been shining?
couldn't he have been shining?
couldn't we have been shining?
couldn't you have been shining?
couldn't they have been shining?