Conjugación del verbo inglés
COULD PERCUSS

Verbo regular: percuss - percussed - percussed

Afirmación

Forma simple	Forma con V-ing
I could percuss you could percuss he could percuss we could percuss you could percuss they could percuss	I could be percussing you could be percussing he could be percussing we could be percussing you could be percussing they could be percussing
Perfecto	Perfecto con V-ing
I could have percussed you could have percussed he could have percussed we could have percussed you could have percussed they could have percussed	I could have been percussing you could have been percussing he could have been percussing we could have been percussing you could have been percussing they could have been percussing

Negación

Forma simple	Forma con V-ing
I couldn't percuss you couldn't percuss he couldn't percuss we couldn't percuss you couldn't percuss they couldn't percuss	I couldn't be percussing you couldn't be percussing he couldn't be percussing we couldn't be percussing you couldn't be percussing they couldn't be percussing
Perfecto	Perfecto con V-ing
I couldn't have percussed you couldn't have percussed he couldn't have percussed we couldn't have percussed you couldn't have percussed they couldn't have percussed	I couldn't have been percussing you couldn't have been percussing he couldn't have been percussing we couldn't have been percussing you couldn't have been percussing they couldn't have been percussing

Forma interrogativa

Forma simple	Forma con V-ing
could I percuss? could you percuss? could he percuss? could we percuss? could you percuss? could they percuss?	could I be percussing? could you be percussing? could he be percussing? could we be percussing? could you be percussing? could they be percussing?
Perfecto	Perfecto con V-ing
could I have percussed? could you have percussed? could he have percussed? could we have percussed? could you have percussed? could they have percussed?	could I have been percussing? could you have been percussing? could he have been percussing? could we have been percussing? could you have been percussing? could they have been percussing?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I percuss? couldn't you percuss? couldn't he percuss? couldn't we percuss? couldn't you percuss? couldn't they percuss?	couldn't I be percussing? couldn't you be percussing? couldn't he be percussing? couldn't we be percussing? couldn't you be percussing? couldn't they be percussing?
Perfecto	Perfecto con V-ing
couldn't I have percussed? couldn't you have percussed? couldn't he have percussed? couldn't we have percussed? couldn't you have percussed? couldn't they have percussed?	couldn't I have been percussing? couldn't you have been percussing? couldn't he have been percussing? couldn't we have been percussing? couldn't you have been percussing? couldn't they have been percussing?