Notice these two tenses in the following examples.
<table border="0" cellspacing="0" cellpadding="0" style="width: 501pt; background: white;"> <tbody><tr> <td style="width:135.0pt;border:inset 1.0pt;border-top:solid #DDDDDD 1.0pt; mso-border-alt:inset windowtext .75pt;mso-border-top-alt:solid #DDDDDD .75pt; background:#C6D9F1;mso-background-themecolor:text2;mso-background-themetint: 51;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222; mso-bidi-font-weight:bold">Future Tense<span style="font-size:10.5pt; line-height:200%;font-family:"Arial","sans-serif";mso-fareast-font-family: "Times New Roman";color:#222222"><o:p></o:p> </td> <td style="width:135.0pt;border-top:solid #DDDDDD 1.0pt;border-left: none;border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-left-alt: inset windowtext .75pt;mso-border-alt:inset windowtext .75pt;mso-border-top-alt: solid #DDDDDD .75pt;background:#C6D9F1;mso-background-themecolor:text2; mso-background-themetint:51;padding:.75pt .75pt .75pt .75pt"></td> <td style="width:231.0pt;border-top:solid #DDDDDD 1.0pt;border-left: none;border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-left-alt: inset windowtext .75pt;mso-border-alt:inset windowtext .75pt;mso-border-top-alt: solid #DDDDDD .75pt;background:#C6D9F1;mso-background-themecolor:text2; mso-background-themetint:51;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222; mso-bidi-font-weight:bold">Present Tense<span style="font-size:10.5pt; line-height:200%;font-family:"Arial","sans-serif";mso-fareast-font-family: "Times New Roman";color:#222222"><o:p></o:p> </td> </tr> <tr style="mso-yfti-irow:1;height:84.45pt"> <td style="width:135.0pt;border:inset 1.0pt;border-top:none; mso-border-top-alt:solid #DDDDDD .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt; height:84.45pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222">тАв There wonтАЩt be any books left<o:p></o:p> </td> <td style="width:135.0pt;border-top:none;border-left:none; border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-top-alt:solid #DDDDDD .75pt; mso-border-left-alt:inset windowtext .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt; height:84.45pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222">unless<o:p></o:p> </td> <td style="width:231.0pt;border-top:none;border-left:none; border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-top-alt:solid #DDDDDD .75pt; mso-border-left-alt:inset windowtext .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt; height:84.45pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222">we preserve them.<o:p></o:p> </td> </tr> <tr> <td style="width:135.0pt;border:inset 1.0pt;border-top:none; mso-border-top-alt:solid #DDDDDD .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222">тАв You wonтАЩt leam your lessons<o:p></o:p> </td> <td style="width:135.0pt;border-top:none;border-left:none; border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-top-alt:solid #DDDDDD .75pt; mso-border-left-alt:inset windowtext .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:33.5pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222">if<o:p></o:p> </td> <td style="width:231.0pt;border-top:none;border-left:none; border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-top-alt:solid #DDDDDD .75pt; mso-border-left-alt:inset windowtext .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:21.75pt;text-align:center; line-height:200%"><span style="font-size:10.5pt;line-height:200%;font-family: "Arial","sans-serif";mso-fareast-font-family:"Times New Roman";color:#222222">you donтАЩt
study
regularly.<o:p></o:p> </td> </tr> <tr> <td style="width:135.0pt;border:inset 1.0pt;border-top:none; mso-border-top-alt:solid #DDDDDD .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:0in;margin-bottom:.0001pt; text-align:center;line-height:200%"><span style="font-size:10.5pt;line-height: 200%;font-family:"Arial","sans-serif";mso-fareast-font-family:"Times New Roman"; color:#222222">тАв Tommy will have an accident<o:p></o:p> </td> <td style="width:135.0pt;border-top:none;border-left:none; border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-top-alt:solid #DDDDDD .75pt; mso-border-left-alt:inset windowtext .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:0in;margin-bottom:.0001pt; text-align:center;line-height:200%"><span style="font-size:10.5pt;line-height: 200%;font-family:"Arial","sans-serif";mso-fareast-font-family:"Times New Roman"; color:#222222">unless<o:p></o:p> </td> <td style="width:231.0pt;border-top:none;border-left:none; border-bottom:inset 1.0pt;border-right:inset 1.0pt;mso-border-top-alt:solid #DDDDDD .75pt; mso-border-left-alt:inset windowtext .75pt;mso-border-alt:inset windowtext .75pt; mso-border-top-alt:solid #DDDDDD .75pt;padding:.75pt .75pt .75pt .75pt"> <p align="center" style="margin-bottom:0in;margin-bottom:.0001pt; text-align:center;line-height:200%"><span style="font-size:10.5pt;line-height: 200%;font-family:"Arial","sans-serif";mso-fareast-font-family:"Times New Roman"; color:#222222">he drives more slowly.<o:p></o:p> </td> </tr></tbody></table>
Complete the following conditional sentences. Use the correct form of the verb.
1. If I donтАЩt go to AnuтАЩs party tonight, __________.
2. If you donтАЩt telephone the hotel to order food, __________.
3. Unless you promise to write back, I __________.
4. If she doesnтАЩt play any games, __________.
5. Unless that little bird flies away quickly, the cat __________.
' href='chapter-1-the-fun-they-had-solutions-2.aspx'>
If Not and Unless
тАв Imagine that MargieтАЩs mother told her, тАЬYouтАЩll feel awful if you donтАЩt finish your history lesson.тАЭ
тАв She could also say: тАЬYouтАЩll feel awful unless you finish your history lesson.тАЭ
Unless means if not. Sentence with unless or if not are negative conditional sentences.
Notice that these sentences have two parts. The part that begins with if not or unless tells us the condition. The part has a verb in the present tense (look at the verbs donтАЩt finish, finish in the sentences above.)
The other part of the sentence tells us about a possible result. It tells us what will happen (if something doesnтАЩt happen). The verb in this part of the sentence is in the future tense (you'll feel/ you will feel).
Notice these two tenses in the following examples.
| Future Tense | | Present Tense |
| тАв There wonтАЩt be any books left | unless | we preserve them. |
| тАв You wonтАЩt leam your lessons | if | you donтАЩt
study
regularly. |
| тАв Tommy will have an accident | unless | he drives more slowly. |
Complete the following conditional sentences. Use the correct form of the verb.
1. If I donтАЩt go to AnuтАЩs party tonight, __________.
2. If you donтАЩt telephone the hotel to order food, __________.
3. Unless you promise to write back, I __________.
4. If she doesnтАЩt play any games, __________.
5. Unless that little bird flies away quickly, the cat __________.
1. If I donтАЩt go to AnuтАЩs party tonight, she will be angry.
2. If you donтАЩt telephone the hotel to order food, you will miss your evening meal.
3. Unless you promise to write back, I will not write to you.
4. If she doesnтАЩt play any games, she will become dull and lazy.
5. Unless that little bird flies away quickly, the cat will pounce on it.