can screak
Verbe régulier : screak - screaked- screaked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can screak
you can screak
he can screak
we can screak
you can screak
they can screak 	I can be screaking
you can be screaking
he can be screaking
we can be screaking
you can be screaking
they can be screaking	I can have screaked
you can have screaked
he can have screaked
we can have screaked
you can have screaked
they can have screaked	I can have been screaking
you can have been screaking
he can have been screaking
we can have been screaking
you can have been screaking
they can have been screaking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't screak
you can't screak
he can't screak
we can't screak
you can't screak
they can't screak 	I can't be screaking
you can't be screaking
he can't be screaking
we can't be screaking
you can't be screaking
they can't be screaking	I can't have screaked
you can't have screaked
he can't have screaked
we can't have screaked
you can't have screaked
they can't have screaked	I can't have been screaking
you can't have been screaking
he can't have been screaking
we can't have been screaking
you can't have been screaking
they can't have been screaking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I screak?
can you screak?
can he screak?
can we screak?
can you screak?
can they screak? 	can I be screaking?
can you be screaking?
can he be screaking?
can we be screaking?
can you be screaking?
can they be screaking? 	can I have screaked?
can you have screaked?
can he have screaked?
can we have screaked?
can you have screaked?
can they have screaked? 	can I have been screaking?
can you have been screaking?
can he have been screaking?
can we have been screaking?
can you have been screaking?
can they have been screaking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I screak?
can't you screak?
can't he screak?
can't we screak?
can't you screak?
can't they screak? 	can't I be screaking?
can't you be screaking?
can't he be screaking?
can't we be screaking?
can't you be screaking?
can't they be screaking? 	can't I have screaked?
can't you have screaked?
can't he have screaked?
can't we have screaked?
can't you have screaked?
can't they have screaked? 	can't I have been screaking?
can't you have been screaking?
can't he have been screaking?
can't we have been screaking?
can't you have been screaking?
can't they have been screaking?