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