I can buggar you can buggar he can buggar we can buggar you can buggar they can buggar
V-ing form
I can be buggaring you can be buggaring he can be buggaring we can be buggaring you can be buggaring they can be buggaring
Perfect
I can have buggared you can have buggared he can have buggared we can have buggared you can have buggared they can have buggared
V-ing perfect
I can have been buggaring you can have been buggaring he can have been buggaring we can have been buggaring you can have been buggaring they can have been buggaring
Negation
Simple form
I can't buggar you can't buggar he can't buggar we can't buggar you can't buggar they can't buggar
V-ing form
I can't be buggaring you can't be buggaring he can't be buggaring we can't be buggaring you can't be buggaring they can't be buggaring
Perfect
I can't have buggared you can't have buggared he can't have buggared we can't have buggared you can't have buggared they can't have buggared
V-ing perfect
I can't have been buggaring you can't have been buggaring he can't have been buggaring we can't have been buggaring you can't have been buggaring they can't have been buggaring
Interrogative form
Simple form
can I buggar? can you buggar? can he buggar? can we buggar? can you buggar? can they buggar?
V-ing form
can I be buggaring? can you be buggaring? can he be buggaring? can we be buggaring? can you be buggaring? can they be buggaring?
Perfect
can I have buggared? can you have buggared? can he have buggared? can we have buggared? can you have buggared? can they have buggared?
V-ing perfect
can I have been buggaring? can you have been buggaring? can he have been buggaring? can we have been buggaring? can you have been buggaring? can they have been buggaring?
Interro-negative form
Simple form
can't I buggar? can't you buggar? can't he buggar? can't we buggar? can't you buggar? can't they buggar?
V-ing form
can't I be buggaring? can't you be buggaring? can't he be buggaring? can't we be buggaring? can't you be buggaring? can't they be buggaring?
Perfect
can't I have buggared? can't you have buggared? can't he have buggared? can't we have buggared? can't you have buggared? can't they have buggared?
V-ing perfect
can't I have been buggaring? can't you have been buggaring? can't he have been buggaring? can't we have been buggaring? can't you have been buggaring? can't they have been buggaring?