Conjugación del verbo inglés
COULD THUD

Verbo regular: thud - thudded - thudded

Afirmación

Forma simple	Forma con V-ing
I could thud you could thud he could thud we could thud you could thud they could thud	I could be thudding you could be thudding he could be thudding we could be thudding you could be thudding they could be thudding
Perfecto	Perfecto con V-ing
I could have thudded you could have thudded he could have thudded we could have thudded you could have thudded they could have thudded	I could have been thudding you could have been thudding he could have been thudding we could have been thudding you could have been thudding they could have been thudding

Negación

Forma simple	Forma con V-ing
I couldn't thud you couldn't thud he couldn't thud we couldn't thud you couldn't thud they couldn't thud	I couldn't be thudding you couldn't be thudding he couldn't be thudding we couldn't be thudding you couldn't be thudding they couldn't be thudding
Perfecto	Perfecto con V-ing
I couldn't have thudded you couldn't have thudded he couldn't have thudded we couldn't have thudded you couldn't have thudded they couldn't have thudded	I couldn't have been thudding you couldn't have been thudding he couldn't have been thudding we couldn't have been thudding you couldn't have been thudding they couldn't have been thudding

Forma interrogativa

Forma simple	Forma con V-ing
could I thud? could you thud? could he thud? could we thud? could you thud? could they thud?	could I be thudding? could you be thudding? could he be thudding? could we be thudding? could you be thudding? could they be thudding?
Perfecto	Perfecto con V-ing
could I have thudded? could you have thudded? could he have thudded? could we have thudded? could you have thudded? could they have thudded?	could I have been thudding? could you have been thudding? could he have been thudding? could we have been thudding? could you have been thudding? could they have been thudding?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I thud? couldn't you thud? couldn't he thud? couldn't we thud? couldn't you thud? couldn't they thud?	couldn't I be thudding? couldn't you be thudding? couldn't he be thudding? couldn't we be thudding? couldn't you be thudding? couldn't they be thudding?
Perfecto	Perfecto con V-ing
couldn't I have thudded? couldn't you have thudded? couldn't he have thudded? couldn't we have thudded? couldn't you have thudded? couldn't they have thudded?	couldn't I have been thudding? couldn't you have been thudding? couldn't he have been thudding? couldn't we have been thudding? couldn't you have been thudding? couldn't they have been thudding?