English verb conjugation
CAN DIET

Regular verb: diet - dieted - dieted

Affirmation

Simple form	V-ing form
I can diet you can diet he can diet we can diet you can diet they can diet	I can be dieting you can be dieting he can be dieting we can be dieting you can be dieting they can be dieting
Perfect	V-ing perfect
I can have dieted you can have dieted he can have dieted we can have dieted you can have dieted they can have dieted	I can have been dieting you can have been dieting he can have been dieting we can have been dieting you can have been dieting they can have been dieting

Negation

Simple form	V-ing form
I can't diet you can't diet he can't diet we can't diet you can't diet they can't diet	I can't be dieting you can't be dieting he can't be dieting we can't be dieting you can't be dieting they can't be dieting
Perfect	V-ing perfect
I can't have dieted you can't have dieted he can't have dieted we can't have dieted you can't have dieted they can't have dieted	I can't have been dieting you can't have been dieting he can't have been dieting we can't have been dieting you can't have been dieting they can't have been dieting

Interrogative form

Simple form	V-ing form
can I diet? can you diet? can he diet? can we diet? can you diet? can they diet?	can I be dieting? can you be dieting? can he be dieting? can we be dieting? can you be dieting? can they be dieting?
Perfect	V-ing perfect
can I have dieted? can you have dieted? can he have dieted? can we have dieted? can you have dieted? can they have dieted?	can I have been dieting? can you have been dieting? can he have been dieting? can we have been dieting? can you have been dieting? can they have been dieting?

Interro-negative form

Simple form	V-ing form
can't I diet? can't you diet? can't he diet? can't we diet? can't you diet? can't they diet?	can't I be dieting? can't you be dieting? can't he be dieting? can't we be dieting? can't you be dieting? can't they be dieting?
Perfect	V-ing perfect
can't I have dieted? can't you have dieted? can't he have dieted? can't we have dieted? can't you have dieted? can't they have dieted?	can't I have been dieting? can't you have been dieting? can't he have been dieting? can't we have been dieting? can't you have been dieting? can't they have been dieting?