I can flour you can flour he can flour we can flour you can flour they can flour
V-ing form
I can be flouring you can be flouring he can be flouring we can be flouring you can be flouring they can be flouring
Perfect
I can have floured you can have floured he can have floured we can have floured you can have floured they can have floured
V-ing perfect
I can have been flouring you can have been flouring he can have been flouring we can have been flouring you can have been flouring they can have been flouring
Negation
Simple form
I can't flour you can't flour he can't flour we can't flour you can't flour they can't flour
V-ing form
I can't be flouring you can't be flouring he can't be flouring we can't be flouring you can't be flouring they can't be flouring
Perfect
I can't have floured you can't have floured he can't have floured we can't have floured you can't have floured they can't have floured
V-ing perfect
I can't have been flouring you can't have been flouring he can't have been flouring we can't have been flouring you can't have been flouring they can't have been flouring
Interrogative form
Simple form
can I flour? can you flour? can he flour? can we flour? can you flour? can they flour?
V-ing form
can I be flouring? can you be flouring? can he be flouring? can we be flouring? can you be flouring? can they be flouring?
Perfect
can I have floured? can you have floured? can he have floured? can we have floured? can you have floured? can they have floured?
V-ing perfect
can I have been flouring? can you have been flouring? can he have been flouring? can we have been flouring? can you have been flouring? can they have been flouring?
Interro-negative form
Simple form
can't I flour? can't you flour? can't he flour? can't we flour? can't you flour? can't they flour?
V-ing form
can't I be flouring? can't you be flouring? can't he be flouring? can't we be flouring? can't you be flouring? can't they be flouring?
Perfect
can't I have floured? can't you have floured? can't he have floured? can't we have floured? can't you have floured? can't they have floured?
V-ing perfect
can't I have been flouring? can't you have been flouring? can't he have been flouring? can't we have been flouring? can't you have been flouring? can't they have been flouring?