Often but not always there is a centerline longitudinal member called a keel.

Often but not always, this involves an authority, who does the controlling.

Often, but not always, and depending on the type of movie, the soundtrack album will contain portions of the score, music composed for dramatic effect as the movie's plot occurs.

Often Tom must protect his new invention from villains " intent on stealing Tom's thunder or preventing his success ," but Tom is always successful in the end.

Often but not always a phase implies the identification of an occupation surface " old ground level " that existed at some earlier time.

Often in modern weddings, the ceremony of removing a face veil after the wedding to present the groom with a virgin bride is skipped, since many couples have already entered into conjugal relations prior to their wedding day – the bride either wears no face veil, or it is lifted before the ceremony begins, but this is not always the case.

Often, but not always, the player must build specific structures to unlock more advanced units in the tech tree.

Often, but not always, RTS games require the player to build an army ( ranging from small squads of no more than 2 units, to literally hundreds of units ) and using them to either defend themselves from a virtual form of Human wave attack or to eliminate enemies who possess bases with unit production capacities of their own.

Often, but not always, outside first base ( that is, in foul territory ) and adjacent and connected to it there is a contrast-colored " double base " or " safety base ".

Often people will say that a crotchet is one beat, however, this is not always correct, as the beat is indicated by the time signature of the music ; a quarter note may or may not be the beat.

Often there is no coupler between locomotive and train since gravity will always push the passenger car down against the locomotive.

On diesel engines the diesel fuel is still needed to ignite the gas mixture, so a mechanically regulated diesel engine's " stop " linkage and probably " throttle " linkage must be modified to always give the engine a little bit of injected fuel ( Often under the standard idle per-injection volume ).

Often but not always a geographical feature can be found that lends itself to being a border.

Often, new settlers did not appreciate that Māori owned their land communally under the mana of a chief and that permission to settle on land did not always imply sale of that land.

Often, but not always, and are equal, so is proportional to the sum ( or average ) of and.

Often, but not always, passenger cars in a train are linked together with enclosed, flexible gangway connections that can be walked through by passengers and crew members.

Often, to escape taxation, he brought the fish directly to the homes of nobles, but was almost always caught in the act by the tax collectors and imprisoned.

Often, attacks occur after a particularly fatty meal and almost always happen at night.

Often, but not always, exudates can be seen.

Often a passenger ship is stated to " weigh " or " displace " a certain " tonnage ," but the figure given nearly always refers to gross tonnage.

Often, but not always, the puppeteer will hide behind a stand and raise their hand above it so that only the puppet is visible.

Often times with animation they'll have adult actors doing the voices of teenagers and they always sound like Saturday morning voices.

Often performed before a live audience ( or, in some cases, a simulated live audience in the form of a laugh track ), usually filmed or taped with a multiple-camera setup, and almost always a half-hour in length, sitcoms are seldom presented as realistic depictions of life but often generate honest humor through the relationships between and ongoing development of characters.

Often, but not always, states or groups that aid one side or the other are outside the box.

Often it is recognized that all the details of the pattern may not be essential to the outcome but, because the pattern was empirically determined and not developed through theoretical understanding, one is never quite certain which behavior elements are effective, and the whole pattern becomes ritualized.

Often the historian must consider the use of intuition or instinct by those individuals or nations which he is studying.

Often work of this sort is presented as calligraphy -- the pure utterance of the brush stroke seeking only absolute painteresque values.

Often it is thin and fragile and gives way readily to the male organ at the first attempt at intercourse.

Often they are able to get in only because the area is declining economically.

Often one of the " treatments " is none, so the treatment group can act

Often the relatives plead with him not to do this, since they know they may never see the person again .</ br > Rieux works to combat the plague simply because he is a doctor and his job is to relieve human suffering.

Often, the fact that sometimes only a thin surface layer of violet color is present in the stone or that the color is not homogeneous makes for a difficult cutting.

Often it is said to be " about " long.

Often, if only one of the allophones is simple to transcribe, in the sense of not requiring diacritics, then that representation is chosen for the phoneme.

Often, if the skill is being used in a functional object, people will consider it a craft instead of art, a suggestion which is highly disputed by many Contemporary Craft thinkers.

Often the Aegis is described as the bag in which Athene carried her shield and the serpent who was her son.

Often, this is the case with a large bridge that serves as an entrance to a city, or crosses over a main harbor entrance.

Often the " small ball " model is associated with the National League, while power hitting is seen as more associated with the American League.

Often this irregular shape is due to their many centers of ossification or because they contain bony sinuses.

Often one assumes a priori that the algebra under consideration is unital: for one can develop much of the theory by considering and then applying the outcome in the original algebra.

Often, these materials are then converted into finished products, and a significant amount of value is added.

Often, a borough is a single town with its own local government.

Often that number is put at 800 million.