Conjugación del verbo inglés
CAN CONCUR

Verbo regular: concur - concurred - concurred

Afirmación

Forma simple	Forma con V-ing
I can concur you can concur she can concur we can concur you can concur they can concur	I can be concurring you can be concurring she can be concurring we can be concurring you can be concurring they can be concurring
Perfecto	Perfecto con V-ing
I can have concurred you can have concurred she can have concurred we can have concurred you can have concurred they can have concurred	I can have been concurring you can have been concurring she can have been concurring we can have been concurring you can have been concurring they can have been concurring

Negación

Forma simple	Forma con V-ing
I cannot concur you cannot concur she cannot concur we cannot concur you cannot concur they cannot concur	I cannot be concurring you cannot be concurring she cannot be concurring we cannot be concurring you cannot be concurring they cannot be concurring
Perfecto	Perfecto con V-ing
I cannot have concurred you cannot have concurred she cannot have concurred we cannot have concurred you cannot have concurred they cannot have concurred	I cannot have been concurring you cannot have been concurring she cannot have been concurring we cannot have been concurring you cannot have been concurring they cannot have been concurring

Forma interrogativa

Forma simple	Forma con V-ing
can I concur? can you concur? can she concur? can we concur? can you concur? can they concur?	can I be concurring? can you be concurring? can she be concurring? can we be concurring? can you be concurring? can they be concurring?
Perfecto	Perfecto con V-ing
can I have concurred? can you have concurred? can she have concurred? can we have concurred? can you have concurred? can they have concurred?	can I have been concurring? can you have been concurring? can she have been concurring? can we have been concurring? can you have been concurring? can they have been concurring?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not concur? can you not concur? can she not concur? can we not concur? can you not concur? can they not concur?	can I not be concurring? can you not be concurring? can she not be concurring? can we not be concurring? can you not be concurring? can they not be concurring?
Perfecto	Perfecto con V-ing
can I not have concurred? can you not have concurred? can she not have concurred? can we not have concurred? can you not have concurred? can they not have concurred?	can I not have been concurring? can you not have been concurring? can she not have been concurring? can we not have been concurring? can you not have been concurring? can they not have been concurring?