Conjugación del verbo inglés
COULD FROGMARCH

Verbo regular: frogmarch - frogmarched - frogmarched

Afirmación

Forma simple	Forma con V-ing
I could frogmarch you could frogmarch he could frogmarch we could frogmarch you could frogmarch they could frogmarch	I could be frogmarching you could be frogmarching he could be frogmarching we could be frogmarching you could be frogmarching they could be frogmarching
Perfecto	Perfecto con V-ing
I could have frogmarched you could have frogmarched he could have frogmarched we could have frogmarched you could have frogmarched they could have frogmarched	I could have been frogmarching you could have been frogmarching he could have been frogmarching we could have been frogmarching you could have been frogmarching they could have been frogmarching

Negación

Forma simple	Forma con V-ing
I couldn't frogmarch you couldn't frogmarch he couldn't frogmarch we couldn't frogmarch you couldn't frogmarch they couldn't frogmarch	I couldn't be frogmarching you couldn't be frogmarching he couldn't be frogmarching we couldn't be frogmarching you couldn't be frogmarching they couldn't be frogmarching
Perfecto	Perfecto con V-ing
I couldn't have frogmarched you couldn't have frogmarched he couldn't have frogmarched we couldn't have frogmarched you couldn't have frogmarched they couldn't have frogmarched	I couldn't have been frogmarching you couldn't have been frogmarching he couldn't have been frogmarching we couldn't have been frogmarching you couldn't have been frogmarching they couldn't have been frogmarching

Forma interrogativa

Forma simple	Forma con V-ing
could I frogmarch? could you frogmarch? could he frogmarch? could we frogmarch? could you frogmarch? could they frogmarch?	could I be frogmarching? could you be frogmarching? could he be frogmarching? could we be frogmarching? could you be frogmarching? could they be frogmarching?
Perfecto	Perfecto con V-ing
could I have frogmarched? could you have frogmarched? could he have frogmarched? could we have frogmarched? could you have frogmarched? could they have frogmarched?	could I have been frogmarching? could you have been frogmarching? could he have been frogmarching? could we have been frogmarching? could you have been frogmarching? could they have been frogmarching?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I frogmarch? couldn't you frogmarch? couldn't he frogmarch? couldn't we frogmarch? couldn't you frogmarch? couldn't they frogmarch?	couldn't I be frogmarching? couldn't you be frogmarching? couldn't he be frogmarching? couldn't we be frogmarching? couldn't you be frogmarching? couldn't they be frogmarching?
Perfecto	Perfecto con V-ing
couldn't I have frogmarched? couldn't you have frogmarched? couldn't he have frogmarched? couldn't we have frogmarched? couldn't you have frogmarched? couldn't they have frogmarched?	couldn't I have been frogmarching? couldn't you have been frogmarching? couldn't he have been frogmarching? couldn't we have been frogmarching? couldn't you have been frogmarching? couldn't they have been frogmarching?