I can float you can float he can float we can float you can float they can float
V-ing form
I can be floating you can be floating he can be floating we can be floating you can be floating they can be floating
Perfect
I can have floated you can have floated he can have floated we can have floated you can have floated they can have floated
V-ing perfect
I can have been floating you can have been floating he can have been floating we can have been floating you can have been floating they can have been floating
Negation
Simple form
I can't float you can't float he can't float we can't float you can't float they can't float
V-ing form
I can't be floating you can't be floating he can't be floating we can't be floating you can't be floating they can't be floating
Perfect
I can't have floated you can't have floated he can't have floated we can't have floated you can't have floated they can't have floated
V-ing perfect
I can't have been floating you can't have been floating he can't have been floating we can't have been floating you can't have been floating they can't have been floating
Interrogative form
Simple form
can I float? can you float? can he float? can we float? can you float? can they float?
V-ing form
can I be floating? can you be floating? can he be floating? can we be floating? can you be floating? can they be floating?
Perfect
can I have floated? can you have floated? can he have floated? can we have floated? can you have floated? can they have floated?
V-ing perfect
can I have been floating? can you have been floating? can he have been floating? can we have been floating? can you have been floating? can they have been floating?
Interro-negative form
Simple form
can't I float? can't you float? can't he float? can't we float? can't you float? can't they float?
V-ing form
can't I be floating? can't you be floating? can't he be floating? can't we be floating? can't you be floating? can't they be floating?
Perfect
can't I have floated? can't you have floated? can't he have floated? can't we have floated? can't you have floated? can't they have floated?
V-ing perfect
can't I have been floating? can't you have been floating? can't he have been floating? can't we have been floating? can't you have been floating? can't they have been floating?