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