WEBVTT FILE 1 00:00:00.320 --> 00:00:02.638 to access free topic sheets 2 00:00:02.638 --> 00:00:06.160 worksheets or to book an online class 3 00:00:06.160 --> 00:00:09.560 visit ilearneasy.co.uk 4 00:00:10.320 --> 00:00:13.119 the verb do is a very common word used 5 00:00:13.119 --> 00:00:14.639 in english 6 00:00:14.639 --> 00:00:17.039 therefore it's important to know and to 7 00:00:17.039 --> 00:00:21.920 understand how to use it correctly 8 00:00:22.239 --> 00:00:23.039 do 9 00:00:23.039 --> 00:00:26.400 is the present tense form of the verb 10 00:00:26.400 --> 00:00:28.320 the present tense form of the verb 11 00:00:28.320 --> 00:00:30.960 differs depending on the subject in the 12 00:00:30.960 --> 00:00:32.399 sentence 13 00:00:32.399 --> 00:00:34.399 so we either use 14 00:00:34.399 --> 00:00:35.440 do 15 00:00:35.440 --> 00:00:38.160 or does 16 00:00:38.320 --> 00:00:41.200 remember the subject is the person or 17 00:00:41.200 --> 00:00:46.000 thing doing the action for subjects i 18 00:00:46.000 --> 00:00:46.960 you 19 00:00:46.960 --> 00:00:47.840 we 20 00:00:47.840 --> 00:00:48.800 they 21 00:00:48.800 --> 00:00:50.879 or any plural noun 22 00:00:50.879 --> 00:00:53.520 we use do 23 00:00:53.520 --> 00:00:56.559 the negative form is don't 24 00:00:56.559 --> 00:00:58.399 this is the contraction 25 00:00:58.399 --> 00:01:01.199 for do not 26 00:01:01.760 --> 00:01:03.680 for subjects he 27 00:01:03.680 --> 00:01:05.119 she 28 00:01:05.119 --> 00:01:06.000 it 29 00:01:06.000 --> 00:01:10.560 or any singular noun we use does 30 00:01:10.560 --> 00:01:13.760 the negative form is doesn't 31 00:01:13.760 --> 00:01:18.319 this is the contraction for does not 32 00:01:19.119 --> 00:01:21.119 first let's start off with the present 33 00:01:21.119 --> 00:01:22.640 tense forms 34 00:01:22.640 --> 00:01:24.720 do and does 35 00:01:24.720 --> 00:01:27.280 as already mentioned the subject will 36 00:01:27.280 --> 00:01:31.680 determine which form of the verb is used 37 00:01:31.680 --> 00:01:34.159 therefore this will ensure that we have 38 00:01:34.159 --> 00:01:38.479 the correct subject-verb agreement 39 00:01:38.880 --> 00:01:41.680 for subjects are you we they 40 00:01:41.680 --> 00:01:44.399 i use the verb do 41 00:01:44.399 --> 00:01:47.040 the negative form is do not 42 00:01:47.040 --> 00:01:50.720 or i can use the contraction don't 43 00:01:50.720 --> 00:01:52.640 when forming the question 44 00:01:52.640 --> 00:01:55.119 the verb comes at the beginning 45 00:01:55.119 --> 00:01:57.200 do i do you 46 00:01:57.200 --> 00:01:58.240 do we 47 00:01:58.240 --> 00:02:00.479 do they 48 00:02:00.479 --> 00:02:03.040 for subjects he she it 49 00:02:03.040 --> 00:02:05.600 i use the verb does 50 00:02:05.600 --> 00:02:09.200 the negative form is does not 51 00:02:09.200 --> 00:02:13.280 or i can use the contraction doesn't 52 00:02:13.280 --> 00:02:15.760 when forming the question the verb comes 53 00:02:15.760 --> 00:02:17.280 at the beginning 54 00:02:17.280 --> 00:02:18.560 does he 55 00:02:18.560 --> 00:02:19.919 does she 56 00:02:19.919 --> 00:02:20.840 does 57 00:02:20.840 --> 00:02:24.639 it it's important to note that we don't 58 00:02:24.639 --> 00:02:27.760 always need to use do or does when 59 00:02:27.760 --> 00:02:31.040 forming positive sentences 60 00:02:31.040 --> 00:02:33.040 for example 61 00:02:33.040 --> 00:02:37.519 i exercise every day here we have the 62 00:02:37.519 --> 00:02:41.920 main verb which is exercise 63 00:02:42.000 --> 00:02:45.200 when forming the negative i would say 64 00:02:45.200 --> 00:02:48.639 i do not exercise every day 65 00:02:48.639 --> 00:02:52.239 so here i have the subject i 66 00:02:52.239 --> 00:02:56.000 followed by the helping verb do 67 00:02:56.000 --> 00:02:59.760 and the main verb which is exercise 68 00:02:59.760 --> 00:03:01.360 so in this case 69 00:03:01.360 --> 00:03:04.080 do is a helping verb because it's 70 00:03:04.080 --> 00:03:07.120 helping the main verb 71 00:03:07.120 --> 00:03:09.440 another example is 72 00:03:09.440 --> 00:03:12.879 he sings every day 73 00:03:12.879 --> 00:03:16.319 he doesn't sing every day or he does not 74 00:03:16.319 --> 00:03:19.919 sing every day and the question would be 75 00:03:19.919 --> 00:03:23.679 does he sing every day 76 00:03:24.000 --> 00:03:27.519 so in summary we use the helping verbs 77 00:03:27.519 --> 00:03:30.159 do and does when forming negative 78 00:03:30.159 --> 00:03:32.400 sentences and questions 79 00:03:32.400 --> 00:03:34.159 but we don't need to use them in 80 00:03:34.159 --> 00:03:36.799 positive sentences where there's already 81 00:03:36.799 --> 00:03:38.319 a main verb 82 00:03:38.319 --> 00:03:40.959 in the next examples i will show you how 83 00:03:40.959 --> 00:03:45.720 to use do as a main verb 84 00:03:46.239 --> 00:03:49.120 i do my homework 85 00:03:49.120 --> 00:03:52.640 i do not do my homework 86 00:03:52.640 --> 00:03:54.720 you do the dishes 87 00:03:54.720 --> 00:03:56.879 you do not do the dishes 88 00:03:56.879 --> 00:04:00.640 or you don't do the dishes 89 00:04:00.640 --> 00:04:03.040 we do the laundry 90 00:04:03.040 --> 00:04:06.480 we don't do the laundry 91 00:04:06.879 --> 00:04:10.680 do they do the housework 92 00:04:16.079 --> 00:04:18.079 he does the laundry 93 00:04:18.079 --> 00:04:21.359 he doesn't do the laundry 94 00:04:21.359 --> 00:04:23.839 she does the dishes 95 00:04:23.839 --> 00:04:27.279 she doesn't do the dishes 96 00:04:27.759 --> 00:04:31.280 does he do the housework 97 00:04:33.040 --> 00:04:34.800 to summarize 98 00:04:34.800 --> 00:04:38.560 do does and did can be used as auxiliary 99 00:04:38.560 --> 00:04:40.000 verbs 100 00:04:40.000 --> 00:04:43.840 these are known as helping verbs 101 00:04:44.639 --> 00:04:46.639 they're used as helping verbs when 102 00:04:46.639 --> 00:04:48.960 forming a negative sentence and a 103 00:04:48.960 --> 00:04:51.440 question 104 00:04:51.919 --> 00:04:53.600 for example 105 00:04:53.600 --> 00:04:56.320 do you study every day 106 00:04:56.320 --> 00:05:00.240 i don't study every day 107 00:05:01.520 --> 00:05:03.199 so here 108 00:05:03.199 --> 00:05:05.919 both helping verbs are helping the main 109 00:05:05.919 --> 00:05:08.919 verbs 110 00:05:10.479 --> 00:05:13.360 do does and did can also be used as a 111 00:05:13.360 --> 00:05:16.400 main verb in a sentence 112 00:05:16.400 --> 00:05:17.919 for example 113 00:05:17.919 --> 00:05:20.560 does he do the laundry 114 00:05:20.560 --> 00:05:23.199 he does the laundry 115 00:05:23.199 --> 00:05:25.759 as you can see in these examples there 116 00:05:25.759 --> 00:05:28.160 are two forms of the verb do in the 117 00:05:28.160 --> 00:05:30.080 question 118 00:05:30.080 --> 00:05:33.680 the first form does is used as a helping 119 00:05:33.680 --> 00:05:34.639 verb 120 00:05:34.639 --> 00:05:36.960 and the second form do 121 00:05:36.960 --> 00:05:40.479 is used as the main verb 122 00:05:40.479 --> 00:05:42.880 do does and did can also be used to 123 00:05:42.880 --> 00:05:45.759 emphasize a point 124 00:05:45.759 --> 00:05:48.000 for example if you forgot to bring your 125 00:05:48.000 --> 00:05:50.400 homework into school and now your 126 00:05:50.400 --> 00:05:52.639 teacher thinks that you didn't actually 127 00:05:52.639 --> 00:05:53.839 finish it 128 00:05:53.839 --> 00:05:56.080 then you might say 129 00:05:56.080 --> 00:05:56.880 no 130 00:05:56.880 --> 00:05:59.600 i did finish my homework 131 00:05:59.600 --> 00:06:02.080 so you're emphasizing the fact that you 132 00:06:02.080 --> 00:06:06.039 did actually do it 133 00:06:06.639 --> 00:06:08.960 it's important to remember that if a 134 00:06:08.960 --> 00:06:12.000 sentence already has a main verb or a 135 00:06:12.000 --> 00:06:14.479 helping verb then we don't need to add 136 00:06:14.479 --> 00:06:17.440 the verb do 137 00:06:18.639 --> 00:06:21.199 for example 138 00:06:21.199 --> 00:06:23.279 i can swim 139 00:06:23.279 --> 00:06:25.440 so the helping verb in this sentence is 140 00:06:25.440 --> 00:06:27.839 the modal verb can 141 00:06:27.839 --> 00:06:29.440 so i wouldn't say 142 00:06:29.440 --> 00:06:31.520 i do can swim 143 00:06:31.520 --> 00:06:34.639 the sentence is correct as it is i can 144 00:06:34.639 --> 00:06:36.960 swim 145 00:06:36.960 --> 00:06:40.080 this also applies to other helping verbs 146 00:06:40.080 --> 00:06:42.240 for example have 147 00:06:42.240 --> 00:06:43.680 i wouldn't say 148 00:06:43.680 --> 00:06:46.479 i do have washed the dishes 149 00:06:46.479 --> 00:06:49.199 instead the correct way is to say 150 00:06:49.199 --> 00:06:52.800 i have washed the dishes 151 00:06:53.759 --> 00:06:55.520 lastly 152 00:06:55.520 --> 00:06:58.160 the verb to be in a sentence doesn't 153 00:06:58.160 --> 00:07:00.800 require a helping verb 154 00:07:00.800 --> 00:07:03.839 the forms of the verb to be are am 155 00:07:03.839 --> 00:07:07.279 is are was or were 156 00:07:07.279 --> 00:07:09.199 for example 157 00:07:09.199 --> 00:07:12.000 i am a librarian 158 00:07:12.000 --> 00:07:14.000 so i don't need to add anything else to 159 00:07:14.000 --> 00:07:17.240 this sentence 160 00:08:10.240 --> 00:08:12.319 you