I can tone you can tone she can tone we can tone you can tone they can tone
V-ing form
I can be toning you can be toning she can be toning we can be toning you can be toning they can be toning
Perfect
I can have toned you can have toned she can have toned we can have toned you can have toned they can have toned
V-ing perfect
I can have been toning you can have been toning she can have been toning we can have been toning you can have been toning they can have been toning
Negation
Simple form
I can't tone you can't tone she can't tone we can't tone you can't tone they can't tone
V-ing form
I can't be toning you can't be toning she can't be toning we can't be toning you can't be toning they can't be toning
Perfect
I can't have toned you can't have toned she can't have toned we can't have toned you can't have toned they can't have toned
V-ing perfect
I can't have been toning you can't have been toning she can't have been toning we can't have been toning you can't have been toning they can't have been toning
Interrogative form
Simple form
can I tone? can you tone? can she tone? can we tone? can you tone? can they tone?
V-ing form
can I be toning? can you be toning? can she be toning? can we be toning? can you be toning? can they be toning?
Perfect
can I have toned? can you have toned? can she have toned? can we have toned? can you have toned? can they have toned?
V-ing perfect
can I have been toning? can you have been toning? can she have been toning? can we have been toning? can you have been toning? can they have been toning?
Interro-negative form
Simple form
can't I tone? can't you tone? can't she tone? can't we tone? can't you tone? can't they tone?
V-ing form
can't I be toning? can't you be toning? can't she be toning? can't we be toning? can't you be toning? can't they be toning?
Perfect
can't I have toned? can't you have toned? can't she have toned? can't we have toned? can't you have toned? can't they have toned?
V-ing perfect
can't I have been toning? can't you have been toning? can't she have been toning? can't we have been toning? can't you have been toning? can't they have been toning?