I could beggar you could beggar he could beggar we could beggar you could beggar they could beggar
V-ing form
I could be beggaring you could be beggaring he could be beggaring we could be beggaring you could be beggaring they could be beggaring
Perfect
I could have beggared you could have beggared he could have beggared we could have beggared you could have beggared they could have beggared
V-ing perfect
I could have been beggaring you could have been beggaring he could have been beggaring we could have been beggaring you could have been beggaring they could have been beggaring
Negation
Simple form
I couldn't beggar you couldn't beggar he couldn't beggar we couldn't beggar you couldn't beggar they couldn't beggar
V-ing form
I couldn't be beggaring you couldn't be beggaring he couldn't be beggaring we couldn't be beggaring you couldn't be beggaring they couldn't be beggaring
Perfect
I couldn't have beggared you couldn't have beggared he couldn't have beggared we couldn't have beggared you couldn't have beggared they couldn't have beggared
V-ing perfect
I couldn't have been beggaring you couldn't have been beggaring he couldn't have been beggaring we couldn't have been beggaring you couldn't have been beggaring they couldn't have been beggaring
Interrogative form
Simple form
could I beggar? could you beggar? could he beggar? could we beggar? could you beggar? could they beggar?
V-ing form
could I be beggaring? could you be beggaring? could he be beggaring? could we be beggaring? could you be beggaring? could they be beggaring?
Perfect
could I have beggared? could you have beggared? could he have beggared? could we have beggared? could you have beggared? could they have beggared?
V-ing perfect
could I have been beggaring? could you have been beggaring? could he have been beggaring? could we have been beggaring? could you have been beggaring? could they have been beggaring?
Interro-negative form
Simple form
couldn't I beggar? couldn't you beggar? couldn't he beggar? couldn't we beggar? couldn't you beggar? couldn't they beggar?
V-ing form
couldn't I be beggaring? couldn't you be beggaring? couldn't he be beggaring? couldn't we be beggaring? couldn't you be beggaring? couldn't they be beggaring?
Perfect
couldn't I have beggared? couldn't you have beggared? couldn't he have beggared? couldn't we have beggared? couldn't you have beggared? couldn't they have beggared?
V-ing perfect
couldn't I have been beggaring? couldn't you have been beggaring? couldn't he have been beggaring? couldn't we have been beggaring? couldn't you have been beggaring? couldn't they have been beggaring?