English verb conjugation
CAN TONE

Regular verb: tone - toned - toned

Affirmation

Simple form	V-ing form
I can tone you can tone she can tone we can tone you can tone they can tone	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
can I tone? can you tone? can she tone? can we tone? can you tone? can they tone?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?