Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could bet bet you could bet bet he could bet bet we could bet bet you could bet bet they could bet bet
V-ing form
I could be bet beting you could be bet beting he could be bet beting we could be bet beting you could be bet beting they could be bet beting
Perfect
I could have bet beted you could have bet beted he could have bet beted we could have bet beted you could have bet beted they could have bet beted
V-ing perfect
I could have been bet beting you could have been bet beting he could have been bet beting we could have been bet beting you could have been bet beting they could have been bet beting
Negation
Simple form
I couldn't bet bet you couldn't bet bet he couldn't bet bet we couldn't bet bet you couldn't bet bet they couldn't bet bet
V-ing form
I couldn't be bet beting you couldn't be bet beting he couldn't be bet beting we couldn't be bet beting you couldn't be bet beting they couldn't be bet beting
Perfect
I couldn't have bet beted you couldn't have bet beted he couldn't have bet beted we couldn't have bet beted you couldn't have bet beted they couldn't have bet beted
V-ing perfect
I couldn't have been bet beting you couldn't have been bet beting he couldn't have been bet beting we couldn't have been bet beting you couldn't have been bet beting they couldn't have been bet beting
Interrogative form
Simple form
could I bet bet? could you bet bet? could he bet bet? could we bet bet? could you bet bet? could they bet bet?
V-ing form
could I be bet beting? could you be bet beting? could he be bet beting? could we be bet beting? could you be bet beting? could they be bet beting?
Perfect
could I have bet beted? could you have bet beted? could he have bet beted? could we have bet beted? could you have bet beted? could they have bet beted?
V-ing perfect
could I have been bet beting? could you have been bet beting? could he have been bet beting? could we have been bet beting? could you have been bet beting? could they have been bet beting?
Interro-negative form
Simple form
couldn't I bet bet? couldn't you bet bet? couldn't he bet bet? couldn't we bet bet? couldn't you bet bet? couldn't they bet bet?
V-ing form
couldn't I be bet beting? couldn't you be bet beting? couldn't he be bet beting? couldn't we be bet beting? couldn't you be bet beting? couldn't they be bet beting?
Perfect
couldn't I have bet beted? couldn't you have bet beted? couldn't he have bet beted? couldn't we have bet beted? couldn't you have bet beted? couldn't they have bet beted?
V-ing perfect
couldn't I have been bet beting? couldn't you have been bet beting? couldn't he have been bet beting? couldn't we have been bet beting? couldn't you have been bet beting? couldn't they have been bet beting?