100 Common Run-On Sentence Mistakes

No.	Item	Definition
1.	A bird flew by it startled me.	Run-on sentence example.
2.	Amy packed lunch Ben forgot his.	Run-on sentence example.
3.	An email arrived I ignored it.	Run-on sentence example.
4.	Dad locked the door we left.	Run-on sentence example.
5.	Dinner was ready nobody came.	Run-on sentence example.
6.	Everyone cheered our team won.	Run-on sentence example.
7.	He apologized, she stayed upset.	Comma splice with two clauses.
8.	He changed jobs he moved cities.	Run-on with no separator.
9.	He forgot to call she got angry.	Fused sentence sample.
10.	He found the file he sent it.	Fused independent clauses.
11.	He heard a noise he froze.	Run-on joining clauses.
12.	He lost his wallet he panicked.	Run-on without separator.
13.	He loves history he teaches it.	Fused sentence sample.
14.	He made a promise he broke it.	Fused sentence sample.
15.	He needed cash he sold his bike.	Run-on joining clauses.
16.	He saw the bill he complained.	Fused sentence sample.
17.	He studied all night he passed.	Missing separator between clauses.
18.	He tripped he dropped the tray.	Run-on sentence example.
19.	He was hungry, he cooked eggs.	Comma splice example.
20.	I called her she didn’t answer.	Run-on with no conjunction.
21.	I can help, I need directions.	Comma splice construction.
22.	I enjoy hiking, my sister swims.	Comma splice with contrast.
23.	I forgot my keys I climbed in.	Fused independent clauses.
24.	I had a map we still got lost.	Run-on sentence example.
25.	I heard the news it shocked me.	Fused sentence sample.
26.	I like this song, it is catchy.	Comma splice between clauses.
27.	I lost track of time I was late.	Run-on with two clauses.
28.	I love summer, winter is fine.	Comma splice with contrast.
29.	I need a break my head hurts.	Run-on without punctuation.
30.	I need gas, the tank is low.	Comma splice joining sentences.
31.	I need sleep I have work.	Fused independent clauses.
32.	I respect her, I disagree often.	Comma splice with contrast.
33.	I saw smoke we called 911.	Fused independent clauses.
34.	I saw the sign I turned back.	Run-on sentence example.
35.	I saw your car, I waved.	Comma splice construction.
36.	I trust him, I verify details.	Comma splice sample.
37.	I was busy, I still helped.	Comma splice with contrast.
38.	I was cold, I shut the window.	Comma splice construction.
39.	I was nervous, I spoke clearly.	Comma splice construction.
40.	I was ready, the others weren’t.	Comma splice with contrast.
41.	I was tired, I kept driving.	Comma splice construction.
42.	I was upset, I stayed polite.	Comma splice with contrast.
43.	I went home, I was tired.	Comma splice joining clauses.
44.	It was raining we stayed in.	Independent clauses fused together.
45.	Lunch ended we returned inside.	Run-on sentence example.
46.	My phone died, I missed it.	Comma splice example.
47.	No one objected the vote passed.	Run-on sentence example.
48.	She closed the book, she yawned.	Comma splice sample.
49.	She felt sick she went anyway.	Run-on joining full clauses.
50.	She found the note, she laughed.	Comma splice example.
51.	She heard the joke, she blushed.	Comma splice example.
52.	She knew the risk, she agreed.	Comma splice sample.
53.	She likes tea he likes coffee.	Two clauses without punctuation.
54.	She missed the bus she walked.	Fused clause example.
55.	She read the email, she sighed.	Comma splice example.
56.	She smiled he relaxed.	Run-on without punctuation.
57.	She wore a coat, it was windy.	Comma splice sample.
58.	She wore boots, it was snowing.	Comma splice sample.
59.	The alarm rang, nobody woke up.	Comma splice example.
60.	The baby slept we whispered.	Fused sentence example.
61.	The bell rang class ended.	Run-on with no punctuation.
62.	The car stalled, we pushed it.	Comma splice example.
63.	The chair broke, he fell hard.	Comma splice construction.
64.	The dog barked the baby cried.	Two sentences run together.
65.	The food was cold, we ate it.	Comma splice sample.
66.	The game ended, fans rushed out.	Comma splice construction.
67.	The kids were loud we left.	Fused sentence example.
68.	The lecture ran long, we stayed.	Comma splice sample.
69.	The line was long, we waited.	Comma splice sample.
70.	The plan failed, we tried again.	Comma splice example.
71.	The sky cleared we went outside.	Fused sentence example.
72.	The soup boiled over we laughed.	Run-on without punctuation.
73.	The store closed we went home.	Fused sentence error.
74.	The sun set, we kept walking.	Comma splice between sentences.
75.	The test was hard, I guessed.	Comma splice mistake.
76.	The train stopped, nobody moved.	Comma splice sample.
77.	The wind rose, the trees bent.	Comma splice example.
78.	They left early they were bored.	Fused sentence example.
79.	Under pressure, he agreed.	Comma splice joining clauses.
80.	Under the bed, I found dust.	Comma splice joining clauses.
81.	Until noon, we waited.	Comma splice joining clauses.
82.	Up ahead, the road split.	Comma splice joining clauses.
83.	Usually, I walk, today I drove.	Comma splice joining clauses.
84.	Vacation ended we unpacked.	Run-on with two clauses.
85.	Very few came, we started.	Comma splice joining clauses.
86.	Visitors arrived we opened wine.	Run-on with two clauses.
87.	Voices echoed, nobody answered.	Comma splice joining clauses.
88.	Warm weather returned we swam.	Run-on with two clauses.
89.	We can go now it is late.	Missing punctuation between clauses.
90.	We were late, the movie started.	Comma splice error.
91.	We won, our coach cried.	Comma splice joining clauses.
92.	When dusk fell we lit candles.	Run-on with two clauses.
93.	Winter ended, flowers appeared.	Comma splice joining clauses.
94.	Work piled up we stayed late.	Run-on with two clauses.
95.	Worry faded, I slept.	Comma splice joining clauses.
96.	Yesterday ended badly we argued.	Run-on with two clauses.
97.	You blinked, you missed it.	Comma splice joining clauses.
98.	You took my seat I stood.	Run-on sentence example.
99.	Your shift ended, mine began.	Comma splice joining clauses.
100.	Zero tickets sold we canceled.	Run-on with two clauses.