I can alter you can alter he can alter we can alter you can alter they can alter
Form mit V-ing
I can be altering you can be altering he can be altering we can be altering you can be altering they can be altering
Perfekt
I can have altered you can have altered he can have altered we can have altered you can have altered they can have altered
Perfekt mit V-ing
I can have been altering you can have been altering he can have been altering we can have been altering you can have been altering they can have been altering
Negation
Einfache Form
I can't alter you can't alter he can't alter we can't alter you can't alter they can't alter
Form mit V-ing
I can't be altering you can't be altering he can't be altering we can't be altering you can't be altering they can't be altering
Perfekt
I can't have altered you can't have altered he can't have altered we can't have altered you can't have altered they can't have altered
Perfekt mit V-ing
I can't have been altering you can't have been altering he can't have been altering we can't have been altering you can't have been altering they can't have been altering
Fragende Form
Einfache Form
can I alter? can you alter? can he alter? can we alter? can you alter? can they alter?
Form mit V-ing
can I be altering? can you be altering? can he be altering? can we be altering? can you be altering? can they be altering?
Perfekt
can I have altered? can you have altered? can he have altered? can we have altered? can you have altered? can they have altered?
Perfekt mit V-ing
can I have been altering? can you have been altering? can he have been altering? can we have been altering? can you have been altering? can they have been altering?
Fragende Negation Form
Einfache Form
can't I alter? can't you alter? can't he alter? can't we alter? can't you alter? can't they alter?
Form mit V-ing
can't I be altering? can't you be altering? can't he be altering? can't we be altering? can't you be altering? can't they be altering?
Perfekt
can't I have altered? can't you have altered? can't he have altered? can't we have altered? can't you have altered? can't they have altered?
Perfekt mit V-ing
can't I have been altering? can't you have been altering? can't he have been altering? can't we have been altering? can't you have been altering? can't they have been altering?