I can countercheck you can countercheck she can countercheck we can countercheck you can countercheck they can countercheck
Forme en V-ing
I can be counterchecking you can be counterchecking she can be counterchecking we can be counterchecking you can be counterchecking they can be counterchecking
Perfect
I can have counterchecked you can have counterchecked she can have counterchecked we can have counterchecked you can have counterchecked they can have counterchecked
Perfect en V-ing
I can have been counterchecking you can have been counterchecking she can have been counterchecking we can have been counterchecking you can have been counterchecking they can have been counterchecking
Négation
Forme simple
I cannot countercheck you cannot countercheck she cannot countercheck we cannot countercheck you cannot countercheck they cannot countercheck
Forme en V-ing
I cannot be counterchecking you cannot be counterchecking she cannot be counterchecking we cannot be counterchecking you cannot be counterchecking they cannot be counterchecking
Perfect
I cannot have counterchecked you cannot have counterchecked she cannot have counterchecked we cannot have counterchecked you cannot have counterchecked they cannot have counterchecked
Perfect en V-ing
I cannot have been counterchecking you cannot have been counterchecking she cannot have been counterchecking we cannot have been counterchecking you cannot have been counterchecking they cannot have been counterchecking
Forme interrogative
Forme simple
can I countercheck? can you countercheck? can she countercheck? can we countercheck? can you countercheck? can they countercheck?
Forme en V-ing
can I be counterchecking? can you be counterchecking? can she be counterchecking? can we be counterchecking? can you be counterchecking? can they be counterchecking?
Perfect
can I have counterchecked? can you have counterchecked? can she have counterchecked? can we have counterchecked? can you have counterchecked? can they have counterchecked?
Perfect en V-ing
can I have been counterchecking? can you have been counterchecking? can she have been counterchecking? can we have been counterchecking? can you have been counterchecking? can they have been counterchecking?
Forme interro-négative
Forme simple
can I not countercheck? can you not countercheck? can she not countercheck? can we not countercheck? can you not countercheck? can they not countercheck?
Forme en V-ing
can I not be counterchecking? can you not be counterchecking? can she not be counterchecking? can we not be counterchecking? can you not be counterchecking? can they not be counterchecking?
Perfect
can I not have counterchecked? can you not have counterchecked? can she not have counterchecked? can we not have counterchecked? can you not have counterchecked? can they not have counterchecked?
Perfect en V-ing
can I not have been counterchecking? can you not have been counterchecking? can she not have been counterchecking? can we not have been counterchecking? can you not have been counterchecking? can they not have been counterchecking?