Conjugación del verbo inglés
COULD FRACTIONATE

Verbo regular: fractionate - fractionated - fractionated

Afirmación

Forma simple	Forma con V-ing
I could fractionate you could fractionate he could fractionate we could fractionate you could fractionate they could fractionate	I could be fractionating you could be fractionating he could be fractionating we could be fractionating you could be fractionating they could be fractionating
Perfecto	Perfecto con V-ing
I could have fractionated you could have fractionated he could have fractionated we could have fractionated you could have fractionated they could have fractionated	I could have been fractionating you could have been fractionating he could have been fractionating we could have been fractionating you could have been fractionating they could have been fractionating

Negación

Forma simple	Forma con V-ing
I couldn't fractionate you couldn't fractionate he couldn't fractionate we couldn't fractionate you couldn't fractionate they couldn't fractionate	I couldn't be fractionating you couldn't be fractionating he couldn't be fractionating we couldn't be fractionating you couldn't be fractionating they couldn't be fractionating
Perfecto	Perfecto con V-ing
I couldn't have fractionated you couldn't have fractionated he couldn't have fractionated we couldn't have fractionated you couldn't have fractionated they couldn't have fractionated	I couldn't have been fractionating you couldn't have been fractionating he couldn't have been fractionating we couldn't have been fractionating you couldn't have been fractionating they couldn't have been fractionating

Forma interrogativa

Forma simple	Forma con V-ing
could I fractionate? could you fractionate? could he fractionate? could we fractionate? could you fractionate? could they fractionate?	could I be fractionating? could you be fractionating? could he be fractionating? could we be fractionating? could you be fractionating? could they be fractionating?
Perfecto	Perfecto con V-ing
could I have fractionated? could you have fractionated? could he have fractionated? could we have fractionated? could you have fractionated? could they have fractionated?	could I have been fractionating? could you have been fractionating? could he have been fractionating? could we have been fractionating? could you have been fractionating? could they have been fractionating?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I fractionate? couldn't you fractionate? couldn't he fractionate? couldn't we fractionate? couldn't you fractionate? couldn't they fractionate?	couldn't I be fractionating? couldn't you be fractionating? couldn't he be fractionating? couldn't we be fractionating? couldn't you be fractionating? couldn't they be fractionating?
Perfecto	Perfecto con V-ing
couldn't I have fractionated? couldn't you have fractionated? couldn't he have fractionated? couldn't we have fractionated? couldn't you have fractionated? couldn't they have fractionated?	couldn't I have been fractionating? couldn't you have been fractionating? couldn't he have been fractionating? couldn't we have been fractionating? couldn't you have been fractionating? couldn't they have been fractionating?