Quite a few times when I passed those ever-so-boring-never-changing notes on our kitchen walls (student flat), I wondered about the following:
“…and switch the cooker off”. Why not: “…and switch off the cooker”? At least in this case, the latter one sounds better to me (and this even though the German (my mother tongue) equivalent is a verb that needs to be split (“… und schalte den Herd aus“)).
Switch off, hand sth over, grow up, run away, put sth into… are examples of so called “phrasal verbs” (PV) – combinations of verbs and prepositions/adverbs/prepositions and adverbs. Transitive PV can be either separable (also “splittable”) or not, while intransitive PV are inseparable.
Transitive PV containing adverbs are called “particle verbs” (PaV). If the object is a simple noun it can go on either side of the adverb, so both, “to switch the cooker off” and “to switch off the cooker” are acceptable. Long NP on the other hand tend to come after the adverb, so if the NP in our example was “the dirty, smelly cooker” you’d rather not split the verb and say “to switch off the dirty cooker in the kitchen” (instead of “to switch the dirty cooker in the kitchen off”).
According to the entry in “Simple English” (I didn’t know such a “language” existed until now. haha.) on wikipedia, if you do not know if a phrasal verb is separable or inseparable ALWAYS use a noun or noun phrase and do not try to separate the verb. (Maybe this could lead to the language change of simply not separating any verbs? We’ll (not) see in many years.)
I started a (fb) poll asking people what they would rather say… so far 3-2 for “to switch off the cooker” (I will keep you updated). (Even though there’s no right or wrong here, it’s still interesting to see whether there might be some tendency (not to split the verb? Maybe Edinburgh University’s Student Accommodation should revisit their signs… )).
Apart from those a little more “flexible” transitive PaV, there are also inseparable ones (e.g. “to break up”, “to come apart”…) and such that require a split (“to take sth apart”, “to let sth through”…).
A rule governing all transitive PaV is that if the object is a pronoun, the verb has to be separated so that pronoun precedes the adverb.
If you want to know more about phrasal verb patterns (there are, for example, also prepositional verbs (verbs containing a preposition that is always followed by the object, e.g. “look after sth”)) I suggest having a look at Wikipedia (maybe not the “Simple English” entry. After all, grammar is simple anyway. Isn’t it!) (oh and I can’t believe that they have this entry in only 9 languages (which don’t even include German, French, Spanish… (but “simple English”… right.))! Multilinguistis, that has to be changed! )
Link: Simple English Wikipedia