Conjugación del verbo inglés
COULD RIVAL

Verbo regular: rival - rivalled - rivalled

Afirmación

Forma simple	Forma con V-ing
I could rival you could rival he could rival we could rival you could rival they could rival	I could be rivalling you could be rivalling he could be rivalling we could be rivalling you could be rivalling they could be rivalling
Perfecto	Perfecto con V-ing
I could have rivalled you could have rivalled he could have rivalled we could have rivalled you could have rivalled they could have rivalled	I could have been rivalling you could have been rivalling he could have been rivalling we could have been rivalling you could have been rivalling they could have been rivalling

Negación

Forma simple	Forma con V-ing
I couldn't rival you couldn't rival he couldn't rival we couldn't rival you couldn't rival they couldn't rival	I couldn't be rivalling you couldn't be rivalling he couldn't be rivalling we couldn't be rivalling you couldn't be rivalling they couldn't be rivalling
Perfecto	Perfecto con V-ing
I couldn't have rivalled you couldn't have rivalled he couldn't have rivalled we couldn't have rivalled you couldn't have rivalled they couldn't have rivalled	I couldn't have been rivalling you couldn't have been rivalling he couldn't have been rivalling we couldn't have been rivalling you couldn't have been rivalling they couldn't have been rivalling

Forma interrogativa

Forma simple	Forma con V-ing
could I rival? could you rival? could he rival? could we rival? could you rival? could they rival?	could I be rivalling? could you be rivalling? could he be rivalling? could we be rivalling? could you be rivalling? could they be rivalling?
Perfecto	Perfecto con V-ing
could I have rivalled? could you have rivalled? could he have rivalled? could we have rivalled? could you have rivalled? could they have rivalled?	could I have been rivalling? could you have been rivalling? could he have been rivalling? could we have been rivalling? could you have been rivalling? could they have been rivalling?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I rival? couldn't you rival? couldn't he rival? couldn't we rival? couldn't you rival? couldn't they rival?	couldn't I be rivalling? couldn't you be rivalling? couldn't he be rivalling? couldn't we be rivalling? couldn't you be rivalling? couldn't they be rivalling?
Perfecto	Perfecto con V-ing
couldn't I have rivalled? couldn't you have rivalled? couldn't he have rivalled? couldn't we have rivalled? couldn't you have rivalled? couldn't they have rivalled?	couldn't I have been rivalling? couldn't you have been rivalling? couldn't he have been rivalling? couldn't we have been rivalling? couldn't you have been rivalling? couldn't they have been rivalling?