I can stratify you can stratify he can stratify we can stratify you can stratify they can stratify
Forma con V-ing
I can be stratifying you can be stratifying he can be stratifying we can be stratifying you can be stratifying they can be stratifying
Perfecto
I can have stratified you can have stratified he can have stratified we can have stratified you can have stratified they can have stratified
Perfecto con V-ing
I can have been stratifying you can have been stratifying he can have been stratifying we can have been stratifying you can have been stratifying they can have been stratifying
Negación
Forma simple
I cannot stratify you cannot stratify he cannot stratify we cannot stratify you cannot stratify they cannot stratify
Forma con V-ing
I cannot be stratifying you cannot be stratifying he cannot be stratifying we cannot be stratifying you cannot be stratifying they cannot be stratifying
Perfecto
I cannot have stratified you cannot have stratified he cannot have stratified we cannot have stratified you cannot have stratified they cannot have stratified
Perfecto con V-ing
I cannot have been stratifying you cannot have been stratifying he cannot have been stratifying we cannot have been stratifying you cannot have been stratifying they cannot have been stratifying
Forma interrogativa
Forma simple
can I stratify? can you stratify? can he stratify? can we stratify? can you stratify? can they stratify?
Forma con V-ing
can I be stratifying? can you be stratifying? can he be stratifying? can we be stratifying? can you be stratifying? can they be stratifying?
Perfecto
can I have stratified? can you have stratified? can he have stratified? can we have stratified? can you have stratified? can they have stratified?
Perfecto con V-ing
can I have been stratifying? can you have been stratifying? can he have been stratifying? can we have been stratifying? can you have been stratifying? can they have been stratifying?
Forma interro-negativa
Forma simple
can I not stratify? can you not stratify? can he not stratify? can we not stratify? can you not stratify? can they not stratify?
Forma con V-ing
can I not be stratifying? can you not be stratifying? can he not be stratifying? can we not be stratifying? can you not be stratifying? can they not be stratifying?
Perfecto
can I not have stratified? can you not have stratified? can he not have stratified? can we not have stratified? can you not have stratified? can they not have stratified?
Perfecto con V-ing
can I not have been stratifying? can you not have been stratifying? can he not have been stratifying? can we not have been stratifying? can you not have been stratifying? can they not have been stratifying?