Sunday, November 30, 2003, 19:16 GMT
learner,
An English teacher (or any teacher for that matter) can announce the end of a lesson any way he/she wants: "time's up", "we've run out of time", "class is over", "we are done for the day, class dismissed", etc.
Dorian,
The prefix "dis" is usually attached to verbs to mean the opposite of a certain action (usually implying a separation, reduction, or removal: assemble / disassemble, connect / disconnect, qualify / disqualify, approve / disapprove. Occasionally "dis" is attached to adjectives (disorganized, disinterested) but this is an exception to the rule.
"Un" is a native English prefix that you attach to native English words to form the opposite meaning. "In" is a Latin prefix that gets attached to French or Latin derived words. Of course there is no clear way of you knowing the etymology of a word without consulting the dictionary. So, like most native speakers, you just have to learn which negative prefix goes with which word and commit them to memory.
An English teacher (or any teacher for that matter) can announce the end of a lesson any way he/she wants: "time's up", "we've run out of time", "class is over", "we are done for the day, class dismissed", etc.
Dorian,
The prefix "dis" is usually attached to verbs to mean the opposite of a certain action (usually implying a separation, reduction, or removal: assemble / disassemble, connect / disconnect, qualify / disqualify, approve / disapprove. Occasionally "dis" is attached to adjectives (disorganized, disinterested) but this is an exception to the rule.
"Un" is a native English prefix that you attach to native English words to form the opposite meaning. "In" is a Latin prefix that gets attached to French or Latin derived words. Of course there is no clear way of you knowing the etymology of a word without consulting the dictionary. So, like most native speakers, you just have to learn which negative prefix goes with which word and commit them to memory.