Herbed Chicken

1 tbsp. olive or vegetable oil
1 medium onion, chopped
1 green or sweet red pepper, chopped
6 lg. fresh mushrooms, thinly sliced
1/3 c. chicken broth
2 tbsp. red wine vinegar
1 (29 oz.) can tomato sauce
2 garlic cloves, minced
1 tsp. sugar
1/4 tsp. salt
1/4 tsp. pepper
1 lb. boneless skinless chicken breasts, cut into chunks
2 tbsp. chopped fresh basil or 1 tsp. dried basil
1 tbsp. chopped fresh sage or 1/2 tsp. dried sage
1 lb. dry linguine, cooked and drained
2 to 3 tbsp. grated Parmesan cheese
2 tbsp. chopped fresh parsley