I m married but we don't have marriage certificate...

If you intend to file a lawsuit for divorce in Bahrain, the wife must file a case for divorce against the husband with proof of damage by all means of proof, including witness testimony and proof of his beating for her and you can file a police report of the beating, obtain a sentence of imprisonment, and file it with the Sharia court to prove the damage and obtain a divorce.
The Bahraini family law stipulating divorce for dissent and harm stipulated the following:
Article (98)
 
(A) The wife may request divorce for the harm that is not possible for the ten spouses to be married.
B) The wife may request divorce if her husband completely abandons her and leaves her hanging without an excuse.
(C) The judge shall make the effort to reform the interrelationship between them.
D) If the judge fails to reform and the damage is proven, he shall be sentenced to divorce.
 
Article (99)
If the damage is not established and the discord between the spouses continues and the reform is not possible, the judge appoints two rulings from the spouses if possible, otherwise it is the person who attributes the ability to reform or those who are competent, without prejudice to the provisions of Article (89) of this law.
 
Article (100)
 
A) The two provisions should investigate the causes of discord and make the effort to reform between the spouses.
(B) The two judgments shall provide the judge with a report on their endeavors and suggestions, including the extent of the abuse of each spouse or of each other within a period not exceeding three months from the date of their appointment.
(C) The judge may extend the period referred to in the preceding paragraph at the request of the two arbitrators together or in the interest of a judge.
 
Article (101)
The judge may adopt the report of the arbitrators or appoint others with expertise and competence in the psychological and social affairs by reason of the reason for the arbitration again in accordance with the procedures mentioned in the two preceding articles.
 
Article (102)
If the two provisions differ, the judge appoints another or includes a third judgment likely from the competent.
 
Article (103)
If the reconciliation is not possible and the discord between the spouses continues, the judge shall rule on the divorce based on the judgment report.
In al-Jaafari jurisprudence, the two rulings on divorce are required from the husband and the wife.
 
Article (104)
According to the Sunni jurisprudence, if the judge rules on divorce in accordance with the provisions of Article (103) of this law, the judge determines what the wife should return to the husband from a friend or another if the abuse is all or most of the wife. If the abuse is all or more of the husband, the dowry remains the right of the wife.
 
Article (105)
According to the Sunni jurisprudence, if the wife asked for khula 'before the real entry, and deposited what he held from the friendship and what the husband spent for the sake of marriage, and the husband abstained from the rhythm of khula' and the judge's inability to reform

If you intend to file a lawsuit for divorce in Bahrain, the wife must file a case for divorce against the husband with proof of damage by all means of proof, including witness testimony and proof of his beating for her and you can file a police report of the beating, obtain a sentence of imprisonment, and file it with the Sharia court to prove the damage and obtain a divorce.