Conjugación del verbo inglés
COULD SING SING

Verbo regular: sing sing - sing singed - sing singed

Atención, este verbo puede no existir, se da como ejemplo la conjugación.

Afirmación

Forma simple	Forma con V-ing
I could sing sing you could sing sing he could sing sing we could sing sing you could sing sing they could sing sing	I could be sing singing you could be sing singing he could be sing singing we could be sing singing you could be sing singing they could be sing singing
Perfecto	Perfecto con V-ing
I could have sing singed you could have sing singed he could have sing singed we could have sing singed you could have sing singed they could have sing singed	I could have been sing singing you could have been sing singing he could have been sing singing we could have been sing singing you could have been sing singing they could have been sing singing

Negación

Forma simple	Forma con V-ing
I couldn't sing sing you couldn't sing sing he couldn't sing sing we couldn't sing sing you couldn't sing sing they couldn't sing sing	I couldn't be sing singing you couldn't be sing singing he couldn't be sing singing we couldn't be sing singing you couldn't be sing singing they couldn't be sing singing
Perfecto	Perfecto con V-ing
I couldn't have sing singed you couldn't have sing singed he couldn't have sing singed we couldn't have sing singed you couldn't have sing singed they couldn't have sing singed	I couldn't have been sing singing you couldn't have been sing singing he couldn't have been sing singing we couldn't have been sing singing you couldn't have been sing singing they couldn't have been sing singing

Forma interrogativa

Forma simple	Forma con V-ing
could I sing sing? could you sing sing? could he sing sing? could we sing sing? could you sing sing? could they sing sing?	could I be sing singing? could you be sing singing? could he be sing singing? could we be sing singing? could you be sing singing? could they be sing singing?
Perfecto	Perfecto con V-ing
could I have sing singed? could you have sing singed? could he have sing singed? could we have sing singed? could you have sing singed? could they have sing singed?	could I have been sing singing? could you have been sing singing? could he have been sing singing? could we have been sing singing? could you have been sing singing? could they have been sing singing?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I sing sing? couldn't you sing sing? couldn't he sing sing? couldn't we sing sing? couldn't you sing sing? couldn't they sing sing?	couldn't I be sing singing? couldn't you be sing singing? couldn't he be sing singing? couldn't we be sing singing? couldn't you be sing singing? couldn't they be sing singing?
Perfecto	Perfecto con V-ing
couldn't I have sing singed? couldn't you have sing singed? couldn't he have sing singed? couldn't we have sing singed? couldn't you have sing singed? couldn't they have sing singed?	couldn't I have been sing singing? couldn't you have been sing singing? couldn't he have been sing singing? couldn't we have been sing singing? couldn't you have been sing singing? couldn't they have been sing singing?