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