could upset
Irregular verb: upset - upset- upset

Affirmation 	
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I could upset
you could upset
she could upset
we could upset
you could upset
they could upset 	I could be upsetting
you could be upsetting
she could be upsetting
we could be upsetting
you could be upsetting
they could be upsetting	I could have upset
you could have upset
she could have upset
we could have upset
you could have upset
they could have upset	I could have been upsetting
you could have been upsetting
she could have been upsetting
we could have been upsetting
you could have been upsetting
they could have been upsetting	

Negation 	
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I couldn't upset
you couldn't upset
she couldn't upset
we couldn't upset
you couldn't upset
they couldn't upset 	I couldn't be upsetting
you couldn't be upsetting
she couldn't be upsetting
we couldn't be upsetting
you couldn't be upsetting
they couldn't be upsetting	I couldn't have upset
you couldn't have upset
she couldn't have upset
we couldn't have upset
you couldn't have upset
they couldn't have upset	I couldn't have been upsetting
you couldn't have been upsetting
she couldn't have been upsetting
we couldn't have been upsetting
you couldn't have been upsetting
they couldn't have been upsetting	

Interrogative form 	
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could I upset?
could you upset?
could she upset?
could we upset?
could you upset?
could they upset? 	could I be upsetting?
could you be upsetting?
could she be upsetting?
could we be upsetting?
could you be upsetting?
could they be upsetting? 	could I have upset?
could you have upset?
could she have upset?
could we have upset?
could you have upset?
could they have upset? 	could I have been upsetting?
could you have been upsetting?
could she have been upsetting?
could we have been upsetting?
could you have been upsetting?
could they have been upsetting? 	

Interro-negative form 	
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couldn't I upset?
couldn't you upset?
couldn't she upset?
couldn't we upset?
couldn't you upset?
couldn't they upset? 	couldn't I be upsetting?
couldn't you be upsetting?
couldn't she be upsetting?
couldn't we be upsetting?
couldn't you be upsetting?
couldn't they be upsetting? 	couldn't I have upset?
couldn't you have upset?
couldn't she have upset?
couldn't we have upset?
couldn't you have upset?
couldn't they have upset? 	couldn't I have been upsetting?
couldn't you have been upsetting?
couldn't she have been upsetting?
couldn't we have been upsetting?
couldn't you have been upsetting?
couldn't they have been upsetting?