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