I can waive you can waive he can waive we can waive you can waive they can waive
V-ing form
I can be waiving you can be waiving he can be waiving we can be waiving you can be waiving they can be waiving
Perfect
I can have waived you can have waived he can have waived we can have waived you can have waived they can have waived
V-ing perfect
I can have been waiving you can have been waiving he can have been waiving we can have been waiving you can have been waiving they can have been waiving
Negation
Simple form
I cannot waive you cannot waive he cannot waive we cannot waive you cannot waive they cannot waive
V-ing form
I cannot be waiving you cannot be waiving he cannot be waiving we cannot be waiving you cannot be waiving they cannot be waiving
Perfect
I cannot have waived you cannot have waived he cannot have waived we cannot have waived you cannot have waived they cannot have waived
V-ing perfect
I cannot have been waiving you cannot have been waiving he cannot have been waiving we cannot have been waiving you cannot have been waiving they cannot have been waiving
Interrogative form
Simple form
can I waive? can you waive? can he waive? can we waive? can you waive? can they waive?
V-ing form
can I be waiving? can you be waiving? can he be waiving? can we be waiving? can you be waiving? can they be waiving?
Perfect
can I have waived? can you have waived? can he have waived? can we have waived? can you have waived? can they have waived?
V-ing perfect
can I have been waiving? can you have been waiving? can he have been waiving? can we have been waiving? can you have been waiving? can they have been waiving?
Interro-negative form
Simple form
can I not waive? can you not waive? can he not waive? can we not waive? can you not waive? can they not waive?
V-ing form
can I not be waiving? can you not be waiving? can he not be waiving? can we not be waiving? can you not be waiving? can they not be waiving?
Perfect
can I not have waived? can you not have waived? can he not have waived? can we not have waived? can you not have waived? can they not have waived?
V-ing perfect
can I not have been waiving? can you not have been waiving? can he not have been waiving? can we not have been waiving? can you not have been waiving? can they not have been waiving?