Conjugación del verbo inglés
COULD FLAG

Verbo regular: flag - flagged - flagged

Afirmación

Forma simple	Forma con V-ing
I could flag you could flag she could flag we could flag you could flag they could flag	I could be flagging you could be flagging she could be flagging we could be flagging you could be flagging they could be flagging
Perfecto	Perfecto con V-ing
I could have flagged you could have flagged she could have flagged we could have flagged you could have flagged they could have flagged	I could have been flagging you could have been flagging she could have been flagging we could have been flagging you could have been flagging they could have been flagging

Negación

Forma simple	Forma con V-ing
I couldn't flag you couldn't flag she couldn't flag we couldn't flag you couldn't flag they couldn't flag	I couldn't be flagging you couldn't be flagging she couldn't be flagging we couldn't be flagging you couldn't be flagging they couldn't be flagging
Perfecto	Perfecto con V-ing
I couldn't have flagged you couldn't have flagged she couldn't have flagged we couldn't have flagged you couldn't have flagged they couldn't have flagged	I couldn't have been flagging you couldn't have been flagging she couldn't have been flagging we couldn't have been flagging you couldn't have been flagging they couldn't have been flagging

Forma interrogativa

Forma simple	Forma con V-ing
could I flag? could you flag? could she flag? could we flag? could you flag? could they flag?	could I be flagging? could you be flagging? could she be flagging? could we be flagging? could you be flagging? could they be flagging?
Perfecto	Perfecto con V-ing
could I have flagged? could you have flagged? could she have flagged? could we have flagged? could you have flagged? could they have flagged?	could I have been flagging? could you have been flagging? could she have been flagging? could we have been flagging? could you have been flagging? could they have been flagging?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I flag? couldn't you flag? couldn't she flag? couldn't we flag? couldn't you flag? couldn't they flag?	couldn't I be flagging? couldn't you be flagging? couldn't she be flagging? couldn't we be flagging? couldn't you be flagging? couldn't they be flagging?
Perfecto	Perfecto con V-ing
couldn't I have flagged? couldn't you have flagged? couldn't she have flagged? couldn't we have flagged? couldn't you have flagged? couldn't they have flagged?	couldn't I have been flagging? couldn't you have been flagging? couldn't she have been flagging? couldn't we have been flagging? couldn't you have been flagging? couldn't they have been flagging?