Conjugación del verbo inglés
CAN SECERN

Verbo regular: secern - secerned - secerned

Afirmación

Forma simple	Forma con V-ing
I can secern you can secern he can secern we can secern you can secern they can secern	I can be secerning you can be secerning he can be secerning we can be secerning you can be secerning they can be secerning
Perfecto	Perfecto con V-ing
I can have secerned you can have secerned he can have secerned we can have secerned you can have secerned they can have secerned	I can have been secerning you can have been secerning he can have been secerning we can have been secerning you can have been secerning they can have been secerning

Negación

Forma simple	Forma con V-ing
I can't secern you can't secern he can't secern we can't secern you can't secern they can't secern	I can't be secerning you can't be secerning he can't be secerning we can't be secerning you can't be secerning they can't be secerning
Perfecto	Perfecto con V-ing
I can't have secerned you can't have secerned he can't have secerned we can't have secerned you can't have secerned they can't have secerned	I can't have been secerning you can't have been secerning he can't have been secerning we can't have been secerning you can't have been secerning they can't have been secerning

Forma interrogativa

Forma simple	Forma con V-ing
can I secern? can you secern? can he secern? can we secern? can you secern? can they secern?	can I be secerning? can you be secerning? can he be secerning? can we be secerning? can you be secerning? can they be secerning?
Perfecto	Perfecto con V-ing
can I have secerned? can you have secerned? can he have secerned? can we have secerned? can you have secerned? can they have secerned?	can I have been secerning? can you have been secerning? can he have been secerning? can we have been secerning? can you have been secerning? can they have been secerning?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I secern? can't you secern? can't he secern? can't we secern? can't you secern? can't they secern?	can't I be secerning? can't you be secerning? can't he be secerning? can't we be secerning? can't you be secerning? can't they be secerning?
Perfecto	Perfecto con V-ing
can't I have secerned? can't you have secerned? can't he have secerned? can't we have secerned? can't you have secerned? can't they have secerned?	can't I have been secerning? can't you have been secerning? can't he have been secerning? can't we have been secerning? can't you have been secerning? can't they have been secerning?