can tusk
Verbe régulier : tusk - tusked- tusked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can tusk
you can tusk
he can tusk
we can tusk
you can tusk
they can tusk 	I can be tusking
you can be tusking
he can be tusking
we can be tusking
you can be tusking
they can be tusking	I can have tusked
you can have tusked
he can have tusked
we can have tusked
you can have tusked
they can have tusked	I can have been tusking
you can have been tusking
he can have been tusking
we can have been tusking
you can have been tusking
they can have been tusking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't tusk
you can't tusk
he can't tusk
we can't tusk
you can't tusk
they can't tusk 	I can't be tusking
you can't be tusking
he can't be tusking
we can't be tusking
you can't be tusking
they can't be tusking	I can't have tusked
you can't have tusked
he can't have tusked
we can't have tusked
you can't have tusked
they can't have tusked	I can't have been tusking
you can't have been tusking
he can't have been tusking
we can't have been tusking
you can't have been tusking
they can't have been tusking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I tusk?
can you tusk?
can he tusk?
can we tusk?
can you tusk?
can they tusk? 	can I be tusking?
can you be tusking?
can he be tusking?
can we be tusking?
can you be tusking?
can they be tusking? 	can I have tusked?
can you have tusked?
can he have tusked?
can we have tusked?
can you have tusked?
can they have tusked? 	can I have been tusking?
can you have been tusking?
can he have been tusking?
can we have been tusking?
can you have been tusking?
can they have been tusking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I tusk?
can't you tusk?
can't he tusk?
can't we tusk?
can't you tusk?
can't they tusk? 	can't I be tusking?
can't you be tusking?
can't he be tusking?
can't we be tusking?
can't you be tusking?
can't they be tusking? 	can't I have tusked?
can't you have tusked?
can't he have tusked?
can't we have tusked?
can't you have tusked?
can't they have tusked? 	can't I have been tusking?
can't you have been tusking?
can't he have been tusking?
can't we have been tusking?
can't you have been tusking?
can't they have been tusking?