I could labour you could labour she could labour we could labour you could labour they could labour
Forma con V-ing
I could be labouring you could be labouring she could be labouring we could be labouring you could be labouring they could be labouring
Perfecto
I could have laboured you could have laboured she could have laboured we could have laboured you could have laboured they could have laboured
Perfecto con V-ing
I could have been labouring you could have been labouring she could have been labouring we could have been labouring you could have been labouring they could have been labouring
Negación
Forma simple
I couldn't labour you couldn't labour she couldn't labour we couldn't labour you couldn't labour they couldn't labour
Forma con V-ing
I couldn't be labouring you couldn't be labouring she couldn't be labouring we couldn't be labouring you couldn't be labouring they couldn't be labouring
Perfecto
I couldn't have laboured you couldn't have laboured she couldn't have laboured we couldn't have laboured you couldn't have laboured they couldn't have laboured
Perfecto con V-ing
I couldn't have been labouring you couldn't have been labouring she couldn't have been labouring we couldn't have been labouring you couldn't have been labouring they couldn't have been labouring
Forma interrogativa
Forma simple
could I labour? could you labour? could she labour? could we labour? could you labour? could they labour?
Forma con V-ing
could I be labouring? could you be labouring? could she be labouring? could we be labouring? could you be labouring? could they be labouring?
Perfecto
could I have laboured? could you have laboured? could she have laboured? could we have laboured? could you have laboured? could they have laboured?
Perfecto con V-ing
could I have been labouring? could you have been labouring? could she have been labouring? could we have been labouring? could you have been labouring? could they have been labouring?
Forma interro-negativa
Forma simple
couldn't I labour? couldn't you labour? couldn't she labour? couldn't we labour? couldn't you labour? couldn't they labour?
Forma con V-ing
couldn't I be labouring? couldn't you be labouring? couldn't she be labouring? couldn't we be labouring? couldn't you be labouring? couldn't they be labouring?
Perfecto
couldn't I have laboured? couldn't you have laboured? couldn't she have laboured? couldn't we have laboured? couldn't you have laboured? couldn't they have laboured?
Perfecto con V-ing
couldn't I have been labouring? couldn't you have been labouring? couldn't she have been labouring? couldn't we have been labouring? couldn't you have been labouring? couldn't they have been labouring?