can countercheck
Verbe régulier : countercheck - counterchecked- counterchecked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can countercheck
you can countercheck
he can countercheck
we can countercheck
you can countercheck
they can countercheck 	I can be counterchecking
you can be counterchecking
he can be counterchecking
we can be counterchecking
you can be counterchecking
they can be counterchecking	I can have counterchecked
you can have counterchecked
he can have counterchecked
we can have counterchecked
you can have counterchecked
they can have counterchecked	I can have been counterchecking
you can have been counterchecking
he can have been counterchecking
we can have been counterchecking
you can have been counterchecking
they can have been counterchecking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't countercheck
you can't countercheck
he can't countercheck
we can't countercheck
you can't countercheck
they can't countercheck 	I can't be counterchecking
you can't be counterchecking
he can't be counterchecking
we can't be counterchecking
you can't be counterchecking
they can't be counterchecking	I can't have counterchecked
you can't have counterchecked
he can't have counterchecked
we can't have counterchecked
you can't have counterchecked
they can't have counterchecked	I can't have been counterchecking
you can't have been counterchecking
he can't have been counterchecking
we can't have been counterchecking
you can't have been counterchecking
they can't have been counterchecking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I countercheck?
can you countercheck?
can he countercheck?
can we countercheck?
can you countercheck?
can they countercheck? 	can I be counterchecking?
can you be counterchecking?
can he be counterchecking?
can we be counterchecking?
can you be counterchecking?
can they be counterchecking? 	can I have counterchecked?
can you have counterchecked?
can he have counterchecked?
can we have counterchecked?
can you have counterchecked?
can they have counterchecked? 	can I have been counterchecking?
can you have been counterchecking?
can he have been counterchecking?
can we have been counterchecking?
can you have been counterchecking?
can they have been counterchecking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I countercheck?
can't you countercheck?
can't he countercheck?
can't we countercheck?
can't you countercheck?
can't they countercheck? 	can't I be counterchecking?
can't you be counterchecking?
can't he be counterchecking?
can't we be counterchecking?
can't you be counterchecking?
can't they be counterchecking? 	can't I have counterchecked?
can't you have counterchecked?
can't he have counterchecked?
can't we have counterchecked?
can't you have counterchecked?
can't they have counterchecked? 	can't I have been counterchecking?
can't you have been counterchecking?
can't he have been counterchecking?
can't we have been counterchecking?
can't you have been counterchecking?
can't they have been counterchecking?