Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I shall regret regret you shall regret regret he shall regret regret we shall regret regret you shall regret regret they shall regret regret
V-ing form
I shall be regret regreting you shall be regret regreting he shall be regret regreting we shall be regret regreting you shall be regret regreting they shall be regret regreting
Perfect
I shall have regret regreted you shall have regret regreted he shall have regret regreted we shall have regret regreted you shall have regret regreted they shall have regret regreted
V-ing perfect
I shall have been regret regreting you shall have been regret regreting he shall have been regret regreting we shall have been regret regreting you shall have been regret regreting they shall have been regret regreting
Negation
Simple form
I shall not regret regret you shall not regret regret he shall not regret regret we shall not regret regret you shall not regret regret they shall not regret regret
V-ing form
I shall not be regret regreting you shall not be regret regreting he shall not be regret regreting we shall not be regret regreting you shall not be regret regreting they shall not be regret regreting
Perfect
I shall not have regret regreted you shall not have regret regreted he shall not have regret regreted we shall not have regret regreted you shall not have regret regreted they shall not have regret regreted
V-ing perfect
I shall not have been regret regreting you shall not have been regret regreting he shall not have been regret regreting we shall not have been regret regreting you shall not have been regret regreting they shall not have been regret regreting
Interrogative form
Simple form
shall I regret regret? shall you regret regret? shall he regret regret? shall we regret regret? shall you regret regret? shall they regret regret?
V-ing form
shall I be regret regreting? shall you be regret regreting? shall he be regret regreting? shall we be regret regreting? shall you be regret regreting? shall they be regret regreting?
Perfect
shall I have regret regreted? shall you have regret regreted? shall he have regret regreted? shall we have regret regreted? shall you have regret regreted? shall they have regret regreted?
V-ing perfect
shall I have been regret regreting? shall you have been regret regreting? shall he have been regret regreting? shall we have been regret regreting? shall you have been regret regreting? shall they have been regret regreting?
Interro-negative form
Simple form
shall I not regret regret? shall you not regret regret? shall he not regret regret? shall we not regret regret? shall you not regret regret? shall they not regret regret?
V-ing form
shall I not be regret regreting? shall you not be regret regreting? shall he not be regret regreting? shall we not be regret regreting? shall you not be regret regreting? shall they not be regret regreting?
Perfect
shall I not have regret regreted? shall you not have regret regreted? shall he not have regret regreted? shall we not have regret regreted? shall you not have regret regreted? shall they not have regret regreted?
V-ing perfect
shall I not have been regret regreting? shall you not have been regret regreting? shall he not have been regret regreting? shall we not have been regret regreting? shall you not have been regret regreting? shall they not have been regret regreting?