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