can concertina
Verbe régulier : concertina - concertinaed- concertinaed
Traduction française : télescoper 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can concertina
you can concertina
he can concertina
we can concertina
you can concertina
they can concertina 	I can be concertinaing
you can be concertinaing
he can be concertinaing
we can be concertinaing
you can be concertinaing
they can be concertinaing	I can have concertinaed
you can have concertinaed
he can have concertinaed
we can have concertinaed
you can have concertinaed
they can have concertinaed	I can have been concertinaing
you can have been concertinaing
he can have been concertinaing
we can have been concertinaing
you can have been concertinaing
they can have been concertinaing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot concertina
you cannot concertina
he cannot concertina
we cannot concertina
you cannot concertina
they cannot concertina 	I cannot be concertinaing
you cannot be concertinaing
he cannot be concertinaing
we cannot be concertinaing
you cannot be concertinaing
they cannot be concertinaing	I cannot have concertinaed
you cannot have concertinaed
he cannot have concertinaed
we cannot have concertinaed
you cannot have concertinaed
they cannot have concertinaed	I cannot have been concertinaing
you cannot have been concertinaing
he cannot have been concertinaing
we cannot have been concertinaing
you cannot have been concertinaing
they cannot have been concertinaing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I concertina?
can you concertina?
can he concertina?
can we concertina?
can you concertina?
can they concertina? 	can I be concertinaing?
can you be concertinaing?
can he be concertinaing?
can we be concertinaing?
can you be concertinaing?
can they be concertinaing? 	can I have concertinaed?
can you have concertinaed?
can he have concertinaed?
can we have concertinaed?
can you have concertinaed?
can they have concertinaed? 	can I have been concertinaing?
can you have been concertinaing?
can he have been concertinaing?
can we have been concertinaing?
can you have been concertinaing?
can they have been concertinaing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not concertina?
can you not concertina?
can he not concertina?
can we not concertina?
can you not concertina?
can they not concertina? 	can I not be concertinaing?
can you not be concertinaing?
can he not be concertinaing?
can we not be concertinaing?
can you not be concertinaing?
can they not be concertinaing? 	can I not have concertinaed?
can you not have concertinaed?
can he not have concertinaed?
can we not have concertinaed?
can you not have concertinaed?
can they not have concertinaed? 	can I not have been concertinaing?
can you not have been concertinaing?
can he not have been concertinaing?
can we not have been concertinaing?
can you not have been concertinaing?
can they not have been concertinaing?