can tread
Verbe irrégulier : tread - trod- trod, trodden
Traduction française : fouler aux pieds 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can tread
you can tread
he can tread
we can tread
you can tread
they can tread 	I can be treading
you can be treading
he can be treading
we can be treading
you can be treading
they can be treading	I can have trod, trodden
you can have trod, trodden
he can have trod, trodden
we can have trod, trodden
you can have trod, trodden
they can have trod, trodden	I can have been treading
you can have been treading
he can have been treading
we can have been treading
you can have been treading
they can have been treading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot tread
you cannot tread
he cannot tread
we cannot tread
you cannot tread
they cannot tread 	I cannot be treading
you cannot be treading
he cannot be treading
we cannot be treading
you cannot be treading
they cannot be treading	I cannot have trod, trodden
you cannot have trod, trodden
he cannot have trod, trodden
we cannot have trod, trodden
you cannot have trod, trodden
they cannot have trod, trodden	I cannot have been treading
you cannot have been treading
he cannot have been treading
we cannot have been treading
you cannot have been treading
they cannot have been treading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I tread?
can you tread?
can he tread?
can we tread?
can you tread?
can they tread? 	can I be treading?
can you be treading?
can he be treading?
can we be treading?
can you be treading?
can they be treading? 	can I have trod, trodden?
can you have trod, trodden?
can he have trod, trodden?
can we have trod, trodden?
can you have trod, trodden?
can they have trod, trodden? 	can I have been treading?
can you have been treading?
can he have been treading?
can we have been treading?
can you have been treading?
can they have been treading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not tread?
can you not tread?
can he not tread?
can we not tread?
can you not tread?
can they not tread? 	can I not be treading?
can you not be treading?
can he not be treading?
can we not be treading?
can you not be treading?
can they not be treading? 	can I not have trod, trodden?
can you not have trod, trodden?
can he not have trod, trodden?
can we not have trod, trodden?
can you not have trod, trodden?
can they not have trod, trodden? 	can I not have been treading?
can you not have been treading?
can he not have been treading?
can we not have been treading?
can you not have been treading?
can they not have been treading?