could appraise
Verbo regular: appraise - appraised- appraised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could appraise
you could appraise
he could appraise
we could appraise
you could appraise
they could appraise 	I could be appraising
you could be appraising
he could be appraising
we could be appraising
you could be appraising
they could be appraising	I could have appraised
you could have appraised
he could have appraised
we could have appraised
you could have appraised
they could have appraised	I could have been appraising
you could have been appraising
he could have been appraising
we could have been appraising
you could have been appraising
they could have been appraising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't appraise
you couldn't appraise
he couldn't appraise
we couldn't appraise
you couldn't appraise
they couldn't appraise 	I couldn't be appraising
you couldn't be appraising
he couldn't be appraising
we couldn't be appraising
you couldn't be appraising
they couldn't be appraising	I couldn't have appraised
you couldn't have appraised
he couldn't have appraised
we couldn't have appraised
you couldn't have appraised
they couldn't have appraised	I couldn't have been appraising
you couldn't have been appraising
he couldn't have been appraising
we couldn't have been appraising
you couldn't have been appraising
they couldn't have been appraising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I appraise?
could you appraise?
could he appraise?
could we appraise?
could you appraise?
could they appraise? 	could I be appraising?
could you be appraising?
could he be appraising?
could we be appraising?
could you be appraising?
could they be appraising? 	could I have appraised?
could you have appraised?
could he have appraised?
could we have appraised?
could you have appraised?
could they have appraised? 	could I have been appraising?
could you have been appraising?
could he have been appraising?
could we have been appraising?
could you have been appraising?
could they have been appraising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I appraise?
couldn't you appraise?
couldn't he appraise?
couldn't we appraise?
couldn't you appraise?
couldn't they appraise? 	couldn't I be appraising?
couldn't you be appraising?
couldn't he be appraising?
couldn't we be appraising?
couldn't you be appraising?
couldn't they be appraising? 	couldn't I have appraised?
couldn't you have appraised?
couldn't he have appraised?
couldn't we have appraised?
couldn't you have appraised?
couldn't they have appraised? 	couldn't I have been appraising?
couldn't you have been appraising?
couldn't he have been appraising?
couldn't we have been appraising?
couldn't you have been appraising?
couldn't they have been appraising?