Example sentences of "[prep] and off [prep] " in BNC.

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1 The equipment can perform a wide range of control functions , from simply turning a pump on and off to supervising a complete oil refinery .
2 She fucked him with enthusiasm , they laughed , they did it again and again — on and off for years .
3 What was attractive about the American consortium approach — and I must emphasise that it was never a take-over bid , Sikorsky 's stake is only eight per cent — was firstly , we had worked with Sikorsky on and off for forty years .
4 He had been seeing Molly on and off for about six months .
5 It has been used in jewellery on and off for nearly 1000 years , for crucibles in the laboratory and in industry for nearly 200 years , as a catalyst in industry for 150 years , in the electrical industry for 100 years and now , most recently , in modern metallurgy and medicine .
6 These devices can be set by you to switch lights on and off for determined periods while you are away from home .
7 I 've been using a Strat on and off for about five years , and we also hired in Telecasters , Rickenbacker 12-strings , all kinds of stuff .
8 Nor does it rely principally on my experience in classrooms , though I have been , briefly , a secondary schoolteacher and have been visiting schools and working with young people in a variety of ways on and off for the last sixteen years .
9 TALKS ‘ ON AND OFF FOR A YEAR ’ , SAYS KAVNER
10 They 've been going out on and off for years . ’
11 We were lovers on and off for three years .
12 My husband has suffered from heartburn on and off for years and has recently been diagnosed as having a hiatus hernia .
13 ‘ Thursday : More ‘ set discussions ’ ; I 'm dragging a chair on and off for each sketch : ‘ Re:Pickfords ’ , I mentally mutter .
14 She lived here on and off for three years .
15 A separate report indicated that Iran may have been working on the development of such a weapon on and off for a good decade .
16 Both he and Amiss had spent a considerable time comforting Sunil , who had been throwing up on and off for over an hour .
17 ‘ Having studied these on and off for some days , what is your opinion ? ’
18 I 've been doing smack on and off for about five years .
19 I was worried sick when I saw it , and I 've been ringing your number on and off for the past hour .
20 It is unique in that juniors come first , are welcomed at all times in and out of the club house , on and off of the courts and will never be turned off the courts by seniors .
21 He had visited the studio on and off through his time with Vanessa — he 'd even met Martine there on two occasions when her husband had cancelled a Luxembourg trip and she 'd been too heated to miss a liaison — but it was charmless and cheerless , and he 'd returned happily to the house in Wimpole Mews .
22 In ‘ random mode ’ , the time controller will switch an appliance on and off at random intervals during the four ON periods already set for the programme mode .
23 The Eclipse is exceptionally easy to control , with mains electric ignition , a slow cooking facility , a plate warmer ( in the grill area ) and an oven timer which you can pre-set to switch the oven on and off at times convenient to you ( perhaps while you 're busy entertaining guests before the meal ) .
24 " The cabinet diplomacy at which ( Bismarck ) excelled in the 1860s was no longer possible in the 1880s ; public opinion was beginning to influence policy making it impossible to turn friendships on and off at will . "
25 To prevent it happening again , turn the stopcock on and off at least once a year and close it half a turn from fully open .
26 USL chairman , AT&T executive Bob Kavner , says he talked with Ray Noorda on and off over the last year about acquiring USL .
27 The armed group was not believed to be connected with the Jungle Commando guerrilla group which has been fighting the Suriname Government on and off since 1986 , he said .
28 Firstly , I have been buying this magazine on and off since the first time that Elite ( by Firebird ) was reviewed .
29 Travelled in Germany on and off since my schooldays .
30 His ancestors had been MPs for Liverpool on and off since 1307 , and his father served in the Parliament of 1625 , besides being sheriff of Lancashire in 1620 .
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