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