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
she could shine
we could shine
you could shine
they could shine 	I could be shining
you could be shining
she 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
she 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
she 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
she 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
she 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
she 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
she 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 she shine?
could we shine?
could you shine?
could they shine? 	could I be shining?
could you be shining?
could she 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 she 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 she 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 she 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 she 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 she 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 she have been shining?
couldn't we have been shining?
couldn't you have been shining?
couldn't they have been shining?