PredicateBuilder with ands / ors

public IEnumerable<MembersAndJobHistory> GetMembersForBatchByEmployer(Batch batch)
       {
           IPredicateDescription compositePred;
           PredicateDescription p1 = null, p2 = null, p3 = null, p4 = null, p5 = null, p6 = null;
 
  
           p1 = PredicateBuilder.Make(typeof(MembersAndJobHistory), "Status", FilterOperator.IsEqualTo, "A");
           p2 = PredicateBuilder.Make(typeof (MembersAndJobHistory), "EmployerNo", FilterOperator.IsEqualTo,
               batch.EmployerNo);
           p3 = PredicateBuilder.Make(typeof(MembersAndJobHistory), "PayVia", FilterOperator.IsEqualTo, "E");
 
           if (!CommonControl.IsControlTrue("NoMonthlyDues"))
           {
               p4 = PredicateBuilder.Make(typeof(MembersAndJobHistory), "Dues", FilterOperator.IsEqualTo, 0);
 
           }
           if (batch.BillYN != null)
           {
               p5 = PredicateBuilder.Make(typeof(MembersAndJobHistory), "BillYN", FilterOperator.IsEqualTo, batch.BillYN);             
           }
           p6 = PredicateBuilder.Make(typeof(MembersAndJobHistory), "TSStart", FilterOperator.IsLessThanOrEqualTo, batch.PayPeriodEnd);
 
           compositePred = CombinePreds(p1, p2, p3, p4, p5, p6);
 
           var query = Manager.MembersAndJobHistories
               .Where(compositePred)
               .OrderBy(m => m.SocSecNo);
 
           var results = query.Execute();
           return results;
       }

       public IPredicateDescription CombinePreds(params PredicateDescription[] preds)
      {
           var nonNullPreds = preds.Where(pd => pd != null).ToArray();
           var result = PredicateBuilder.And(nonNullPreds);
           return result;
      }

Now i need to add two more predicates to the query. Basically i want to And an Or. For example, and where
 TSFinish >= batch.PayPeriod or TSFinish is null

How do i fix my code to handle these 2 new predicates?

Bill