Conjugación del verbo inglés
COULD STRATIFY

Verbo regular: stratify - stratified - stratified

Afirmación

Forma simple	Forma con V-ing
I could stratify you could stratify he could stratify we could stratify you could stratify they could stratify	I could be stratifying you could be stratifying he could be stratifying we could be stratifying you could be stratifying they could be stratifying
Perfecto	Perfecto con V-ing
I could have stratified you could have stratified he could have stratified we could have stratified you could have stratified they could have stratified	I could have been stratifying you could have been stratifying he could have been stratifying we could have been stratifying you could have been stratifying they could have been stratifying

Negación

Forma simple	Forma con V-ing
I could not stratify you could not stratify he could not stratify we could not stratify you could not stratify they could not stratify	I could not be stratifying you could not be stratifying he could not be stratifying we could not be stratifying you could not be stratifying they could not be stratifying
Perfecto	Perfecto con V-ing
I could not have stratified you could not have stratified he could not have stratified we could not have stratified you could not have stratified they could not have stratified	I could not have been stratifying you could not have been stratifying he could not have been stratifying we could not have been stratifying you could not have been stratifying they could not have been stratifying

Forma interrogativa

Forma simple	Forma con V-ing
could I stratify? could you stratify? could he stratify? could we stratify? could you stratify? could they stratify?	could I be stratifying? could you be stratifying? could he be stratifying? could we be stratifying? could you be stratifying? could they be stratifying?
Perfecto	Perfecto con V-ing
could I have stratified? could you have stratified? could he have stratified? could we have stratified? could you have stratified? could they have stratified?	could I have been stratifying? could you have been stratifying? could he have been stratifying? could we have been stratifying? could you have been stratifying? could they have been stratifying?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not stratify? could you not stratify? could he not stratify? could we not stratify? could you not stratify? could they not stratify?	could I not be stratifying? could you not be stratifying? could he not be stratifying? could we not be stratifying? could you not be stratifying? could they not be stratifying?
Perfecto	Perfecto con V-ing
could I not have stratified? could you not have stratified? could he not have stratified? could we not have stratified? could you not have stratified? could they not have stratified?	could I not have been stratifying? could you not have been stratifying? could he not have been stratifying? could we not have been stratifying? could you not have been stratifying? could they not have been stratifying?