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">• There won’t 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">• You won’t 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 don’t
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">• 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 don’t go to Anu’s party tonight, __________.
2. If you don’t telephone the hotel to order food, __________.
3. Unless you promise to write back, I __________.
4. If she doesn’t play any games, __________.
5. Unless that little bird flies away quickly, the cat __________.
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If Not and Unless
• Imagine that Margie’s mother told her, “You’ll feel awful if you don’t finish your history lesson.”
• She could also say: “You’ll feel awful unless you finish your history lesson.”
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 don’t 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 doesn’t 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 |
| • There won’t be any books left | unless | we preserve them. |
| • You won’t leam your lessons | if | you don’t
study
regularly. |
| • 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 don’t go to Anu’s party tonight, __________.
2. If you don’t telephone the hotel to order food, __________.
3. Unless you promise to write back, I __________.
4. If she doesn’t play any games, __________.
5. Unless that little bird flies away quickly, the cat __________.
1. If I don’t go to Anu’s party tonight, she will be angry.
2. If you don’t 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 doesn’t play any games, she will become dull and lazy.
5. Unless that little bird flies away quickly, the cat will pounce on it.