In these Tenses, Verb shows the present time without telling about completion of action but tells simply.
For simplicity, we shall take one example with three persons of singular as well as plural number.
Read these sentences.
Infinitive Accept Accepted Accepted Accepting To accept Act Acted Acted Acting To Act Add Added Added Adding To Add Allow Allowed Allowed Allowing To Allow Amaze Amazed Amazed Amazing To Amaze Answer Answered Answered Answering To Answer Appear Appeared Appeared Appearing To Appear Appoint Appointed Appointed Appointing To Appoint Arrest Arrested Arrested Arresting To Arrest Ask Asked Asked Asking To Ask Attack Attacked Attacked Attacking To Attack Avoid Avoided Avoided Avoiding To Avoid Bark Barked Barked Barking To Bark Block Blocked Blocked Blocking To Block Boast Boasted Boasted Boasting To Boast Boil Boiled Boiled Boiling To Boil Borrow Borrowed Borrowed Borrowing To Borrow Call Called Called Calling To Call Cheat Cheated Cheated Cheating To Cheat Check Checked Checked Checking To Check Clean Cleaned Cleaned Cleaning To Clean Climb Climbed Climbed Climbing To Climb Collect Collected Collected Collecting To Collect Complain Complained Complained Complaining To Complain Consult Consulted Consulted Consulting To Consult Cook Cooked Cooked Cooking To Cook Count Counted Counted Counting To Count Cover Covered Covered Covering To Cover Cross Crossed Crossed Crossing To Cross Defeat Defeated Defeated Defeating To Defeat Delay Delayed Delayed Delaying To Delay Delight Delighted Delighted Delighting To Delight Discover Discovered Discovered Discovering To Discover Earn Earned Earned Earning To Earn Employ Employed Employed Employing To Employ Enjoy Enjoyed Enjoyed Enjoying To Enjoy Enter Entered Entered Entering To Enter Explain Explained Explained Explaining To Explain Fail Failed Failed Failing To Fail Fear Feared Feared Fearing To Fear Finish Finished Finished Finishing To Finish Float Floated Floated Floating To Float Gather Gathered Gathered Gathering To Gather Help Helped Helped Helping To Help Join Joined Joined Joining To Join Jump Jumped Jumped Jumping To Jump Kill Killed Killed Killing To Kill Laugh Laughed Laughed Laughing To Laugh Learn Learned Learned Learning To Learn Mend Mended Mended Mending To Mend Mix Mixed Mixed Mixing To Mix Need Needed Needed Needing To Need Obey Obeyed Obeyed Obeying To Obey Open Opened Opened Opening To Open Order Ordered Ordered Ordering To Order Peep Peeped Peeped Peeping To Peep Plant Planted Planted Planting To Plant Play Played Played Playing To Play Plough Ploughed Ploughed Ploughing To Plough Pluck Plucked Plucked Plucking To Pluck Pray Prayed Prayed Praying To Pray Preach Preached Preached Preaching To Preach Prevent Prevented Prevented Preventing To Prevent Pull Pulled Pulled Pulling To Pull Punish Punished Punished Punishing To Punish Push Pushed Pushed Pushing To Push Rain Rained Rained Raining To Rain Reach Reached Reached Reaching To Reach Remember Remembered Remembered Remembering To Remember Repair Repaired Repaired Repairing To Repair Resign Resigned Resigned Resigning To Resign Rest Rested Rested Resting To Rest Return Returned Returned Returning To Return Roar Roared Roared Roaring To Roar Sow Sowed Sowed Sowing To Sow Select Selected Selected Selecting To Select Stay Stayed Stayed Staying To Stay Talk Talked Talked Talking To Talk Touch Touched Touched Touching To Touch Treat Treated Treated Treating To Treat Trust Trusted Trusted Trusting To Trust Wait Waited Waited Waiting To Wait Walk Walked Walked Walking To Walk Wander Wandered Wandered Wandering To Wander Wash Washed Washed Washing To Wash Watch Watched Watched Watching To Watch Wonder Wondered Wondered Wondering To Wonder Work Worked Worked Working To Work Wound Wounded Wounded Wounding To Wound Yield Yielded Yielded Yielding To Yield
It means, in present tense if we take third person and singular numbered noun as subject, we should use the verb with addition of s or es. Sentence of third person and singular number takes the Verb with addition of s.