can concertise
Verbe régulier : concertise - concertised- concertised

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can concertise
you can concertise
he can concertise
we can concertise
you can concertise
they can concertise 	I can be concertising
you can be concertising
he can be concertising
we can be concertising
you can be concertising
they can be concertising	I can have concertised
you can have concertised
he can have concertised
we can have concertised
you can have concertised
they can have concertised	I can have been concertising
you can have been concertising
he can have been concertising
we can have been concertising
you can have been concertising
they can have been concertising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't concertise
you can't concertise
he can't concertise
we can't concertise
you can't concertise
they can't concertise 	I can't be concertising
you can't be concertising
he can't be concertising
we can't be concertising
you can't be concertising
they can't be concertising	I can't have concertised
you can't have concertised
he can't have concertised
we can't have concertised
you can't have concertised
they can't have concertised	I can't have been concertising
you can't have been concertising
he can't have been concertising
we can't have been concertising
you can't have been concertising
they can't have been concertising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I concertise?
can you concertise?
can he concertise?
can we concertise?
can you concertise?
can they concertise? 	can I be concertising?
can you be concertising?
can he be concertising?
can we be concertising?
can you be concertising?
can they be concertising? 	can I have concertised?
can you have concertised?
can he have concertised?
can we have concertised?
can you have concertised?
can they have concertised? 	can I have been concertising?
can you have been concertising?
can he have been concertising?
can we have been concertising?
can you have been concertising?
can they have been concertising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I concertise?
can't you concertise?
can't he concertise?
can't we concertise?
can't you concertise?
can't they concertise? 	can't I be concertising?
can't you be concertising?
can't he be concertising?
can't we be concertising?
can't you be concertising?
can't they be concertising? 	can't I have concertised?
can't you have concertised?
can't he have concertised?
can't we have concertised?
can't you have concertised?
can't they have concertised? 	can't I have been concertising?
can't you have been concertising?
can't he have been concertising?
can't we have been concertising?
can't you have been concertising?
can't they have been concertising?