I can compare you can compare she can compare we can compare you can compare they can compare
Forma con V-ing
I can be comparing you can be comparing she can be comparing we can be comparing you can be comparing they can be comparing
Perfecto
I can have compared you can have compared she can have compared we can have compared you can have compared they can have compared
Perfecto con V-ing
I can have been comparing you can have been comparing she can have been comparing we can have been comparing you can have been comparing they can have been comparing
Negación
Forma simple
I cannot compare you cannot compare she cannot compare we cannot compare you cannot compare they cannot compare
Forma con V-ing
I cannot be comparing you cannot be comparing she cannot be comparing we cannot be comparing you cannot be comparing they cannot be comparing
Perfecto
I cannot have compared you cannot have compared she cannot have compared we cannot have compared you cannot have compared they cannot have compared
Perfecto con V-ing
I cannot have been comparing you cannot have been comparing she cannot have been comparing we cannot have been comparing you cannot have been comparing they cannot have been comparing
Forma interrogativa
Forma simple
can I compare? can you compare? can she compare? can we compare? can you compare? can they compare?
Forma con V-ing
can I be comparing? can you be comparing? can she be comparing? can we be comparing? can you be comparing? can they be comparing?
Perfecto
can I have compared? can you have compared? can she have compared? can we have compared? can you have compared? can they have compared?
Perfecto con V-ing
can I have been comparing? can you have been comparing? can she have been comparing? can we have been comparing? can you have been comparing? can they have been comparing?
Forma interro-negativa
Forma simple
can I not compare? can you not compare? can she not compare? can we not compare? can you not compare? can they not compare?
Forma con V-ing
can I not be comparing? can you not be comparing? can she not be comparing? can we not be comparing? can you not be comparing? can they not be comparing?
Perfecto
can I not have compared? can you not have compared? can she not have compared? can we not have compared? can you not have compared? can they not have compared?
Perfecto con V-ing
can I not have been comparing? can you not have been comparing? can she not have been comparing? can we not have been comparing? can you not have been comparing? can they not have been comparing?