Conjugaison du verbe anglais
COULD PRESIGNAL

Verbe régulier : presignal - presignaled - presignaled

Affirmation

Forme simple	Forme en V-ing
I could presignal you could presignal she could presignal we could presignal you could presignal they could presignal	I could be presignaling you could be presignaling she could be presignaling we could be presignaling you could be presignaling they could be presignaling
Perfect	Perfect en V-ing
I could have presignaled you could have presignaled she could have presignaled we could have presignaled you could have presignaled they could have presignaled	I could have been presignaling you could have been presignaling she could have been presignaling we could have been presignaling you could have been presignaling they could have been presignaling

Négation

Forme simple	Forme en V-ing
I couldn't presignal you couldn't presignal she couldn't presignal we couldn't presignal you couldn't presignal they couldn't presignal	I couldn't be presignaling you couldn't be presignaling she couldn't be presignaling we couldn't be presignaling you couldn't be presignaling they couldn't be presignaling
Perfect	Perfect en V-ing
I couldn't have presignaled you couldn't have presignaled she couldn't have presignaled we couldn't have presignaled you couldn't have presignaled they couldn't have presignaled	I couldn't have been presignaling you couldn't have been presignaling she couldn't have been presignaling we couldn't have been presignaling you couldn't have been presignaling they couldn't have been presignaling

Forme interrogative

Forme simple	Forme en V-ing
could I presignal? could you presignal? could she presignal? could we presignal? could you presignal? could they presignal?	could I be presignaling? could you be presignaling? could she be presignaling? could we be presignaling? could you be presignaling? could they be presignaling?
Perfect	Perfect en V-ing
could I have presignaled? could you have presignaled? could she have presignaled? could we have presignaled? could you have presignaled? could they have presignaled?	could I have been presignaling? could you have been presignaling? could she have been presignaling? could we have been presignaling? could you have been presignaling? could they have been presignaling?

Forme interro-négative

Forme simple	Forme en V-ing
couldn't I presignal? couldn't you presignal? couldn't she presignal? couldn't we presignal? couldn't you presignal? couldn't they presignal?	couldn't I be presignaling? couldn't you be presignaling? couldn't she be presignaling? couldn't we be presignaling? couldn't you be presignaling? couldn't they be presignaling?
Perfect	Perfect en V-ing
couldn't I have presignaled? couldn't you have presignaled? couldn't she have presignaled? couldn't we have presignaled? couldn't you have presignaled? couldn't they have presignaled?	couldn't I have been presignaling? couldn't you have been presignaling? couldn't she have been presignaling? couldn't we have been presignaling? couldn't you have been presignaling? couldn't they have been presignaling?