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