Conjugación del verbo inglés
COULD INSTRUMENT

Verbo regular: instrument - instrumented - instrumented

Afirmación

Forma simple	Forma con V-ing
I could instrument you could instrument he could instrument we could instrument you could instrument they could instrument	I could be instrumenting you could be instrumenting he could be instrumenting we could be instrumenting you could be instrumenting they could be instrumenting
Perfecto	Perfecto con V-ing
I could have instrumented you could have instrumented he could have instrumented we could have instrumented you could have instrumented they could have instrumented	I could have been instrumenting you could have been instrumenting he could have been instrumenting we could have been instrumenting you could have been instrumenting they could have been instrumenting

Negación

Forma simple	Forma con V-ing
I couldn't instrument you couldn't instrument he couldn't instrument we couldn't instrument you couldn't instrument they couldn't instrument	I couldn't be instrumenting you couldn't be instrumenting he couldn't be instrumenting we couldn't be instrumenting you couldn't be instrumenting they couldn't be instrumenting
Perfecto	Perfecto con V-ing
I couldn't have instrumented you couldn't have instrumented he couldn't have instrumented we couldn't have instrumented you couldn't have instrumented they couldn't have instrumented	I couldn't have been instrumenting you couldn't have been instrumenting he couldn't have been instrumenting we couldn't have been instrumenting you couldn't have been instrumenting they couldn't have been instrumenting

Forma interrogativa

Forma simple	Forma con V-ing
could I instrument? could you instrument? could he instrument? could we instrument? could you instrument? could they instrument?	could I be instrumenting? could you be instrumenting? could he be instrumenting? could we be instrumenting? could you be instrumenting? could they be instrumenting?
Perfecto	Perfecto con V-ing
could I have instrumented? could you have instrumented? could he have instrumented? could we have instrumented? could you have instrumented? could they have instrumented?	could I have been instrumenting? could you have been instrumenting? could he have been instrumenting? could we have been instrumenting? could you have been instrumenting? could they have been instrumenting?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I instrument? couldn't you instrument? couldn't he instrument? couldn't we instrument? couldn't you instrument? couldn't they instrument?	couldn't I be instrumenting? couldn't you be instrumenting? couldn't he be instrumenting? couldn't we be instrumenting? couldn't you be instrumenting? couldn't they be instrumenting?
Perfecto	Perfecto con V-ing
couldn't I have instrumented? couldn't you have instrumented? couldn't he have instrumented? couldn't we have instrumented? couldn't you have instrumented? couldn't they have instrumented?	couldn't I have been instrumenting? couldn't you have been instrumenting? couldn't he have been instrumenting? couldn't we have been instrumenting? couldn't you have been instrumenting? couldn't they have been instrumenting?