to differences in phonology and vocabulary and do not generally affect intelligibility. Examples of grammatical differences between Australian English and other varieties include: Collective nouns are generally singular in construction, e.g., the government was unable to decide as opposed to the government were unable to decide or the group was leaving as opposed to the group were leaving. This is in common with American English. Australian English has an extreme distaste for the modal verbs shall (in non-legal contexts), shan't and ought (in place of will, won't and should respectively), which are encountered in British English. However, shall is found in the Australian Constitution, Acts of Parliament, and other formal or legal documents such as contracts. Using should with the same meaning as would, e.g. I should like to see you, encountered in British English, is almost never encountered in Australian English. River follows the name of the river in question, e.g., Brisbane River, rather than the British convention of coming before the name, e.g., River Thames. This is also the case in North American and New Zealand English. In South Australian English however, the reverse applies when referring to the following three rivers: Murray, Darling and Torrens. The Derwent in Tasmania also follows this convention. While prepositions before days may be omitted in American English, i.e., She resigned Thursday, they are retained in Australian English: She resigned on Thursday. This is shared with British English. The institutional nouns hospital and university do not take the definite article: She's in hospital, He's at university. This is in contrast to American English where the is required: In the hospital, At the university. On the weekend is used in favour of the British at the weekend which is not encountered in Australian English. Ranges of dates use to, i.e., Monday to Friday, rather than Monday through Friday. This is shared with British English and is in contrast to American English. When speaking or writing out numbers, and is always inserted before the tens, i.e., one hundred and sixty-two rather than one hundred sixty-two. This is in contrast to American English, where the insertion of and is acceptable but nonetheless either casual or informal. The preposition to in write to (e.g. "I'll write to you") is always retained, as opposed to American usage where it may be dropped. Australian English does not share the British usage of read (v) to mean "study" (v).