• After “didn’t”, “doesn’t”, “don’t” you should only use the basic form (=infinitive) of verbs, and not past tense form.

Utter below group of words 4-5 times aloud. 

didn’t appear, doesn’t appear, don’t appear

didn’t bar, doesn’t bar, don’t bar

didn’t border, doesn’t border, don’t border

didn’t bridge, doesn’t bridge, don’t bridge

didn’t button, doesn’t button, don’t button

didn’t charm, doesn’t charm, don’t charm

didn’t comb, doesn’t comb, don’t comb

didn’t copy, doesn’t copy, don’t copy

didn’t cure, doesn’t cure, don’t cure

didn’t curl, doesn’t curl, don’t curl

didn’t damage, doesn’t damage, don’t damage

didn’t dare, doesn’t dare, don’t dare

didn’t deceive, doesn’t deceive, don’t deceive

didn’t desire, doesn’t desire, don’t desire

didn’t discourage, doesn’t discourage, don’t discourage

didn’t drown, doesn’t drown, don’t drown

didn’t dry, doesn’t dry, don’t dry

didn’t enquire, doesn’t enquire, don’t enquire

didn’t examine, doesn’t examine, don’t examine

didn’t fancy, doesn’t fancy, don’t fancy

didn’t fire, doesn’t fire, don’t fire

didn’t flame, doesn’t flame, don’t flame

didn’t form, doesn’t form, don’t form

didn’t fulfill, doesn’t fulfill, don’t fulfill

didn’t hammer, doesn’t hammer, don’t hammer

didn’t hasten, doesn’t hasten, don’t hasten

didn’t hurry, doesn’t hurry, don’t hurry

didn’t inquire, doesn’t inquire, don’t inquire

didn’t kill, doesn’t kill, don’t kill

didn’t lodge, doesn’t lodge, don’t lodge

didn’t lower, doesn’t lower, don’t lower

didn’t marry, doesn’t marry, don’t marry

didn’t matter, doesn’t matter, don’t matter

didn’t nail, doesn’t nail, don’t nail

didn’t obtain, doesn’t obtain, don’t obtain

didn’t offer, doesn’t offer, don’t offer

didn’t oil, doesn’t oil, don’t oil

didn’t overflow, doesn’t overflow, don’t overflow

didn’t pin, doesn’t pin, don’t pin

didn’t pity, doesn’t pity, don’t pity

didn’t prove, doesn’t prove, don’t prove

didn’t pull, doesn’t pull, don’t pull

didn’t quarrel, doesn’t quarrel, don’t quarrel

didn’t remove, doesn’t remove, don’t remove

didn’t reply, doesn’t reply, don’t reply

didn’t rob, doesn’t rob, don’t rob

didn’t satisfy, doesn’t satisfy, don’t satisfy

didn’t screw, doesn’t screw, don’t screw

didn’t shelter, doesn’t shelter, don’t shelter

didn’t signal, doesn’t signal, don’t signal

didn’t slow, doesn’t slow, don’t slow

didn’t steam, doesn’t steam, don’t steam

didn’t store, doesn’t store, don’t store

didn’t swallow, doesn’t swallow, don’t swallow

didn’t telephone, doesn’t telephone, don’t telephone

didn’t tidy, doesn’t tidy, don’t tidy

didn’t tow, doesn’t tow, don’t tow

didn’t tower, doesn’t tower, don’t tower

didn’t tremble, doesn’t tremble, don’t tremble

didn’t trouble, doesn’t trouble, don’t trouble

didn’t vary, doesn’t vary, don’t vary

didn’t warm, doesn’t warm, don’t warm

didn’t whisper, doesn’t whisper, don’t whisper

didn’t whistle, doesn’t whistle, don’t whistle

didn’t worry, doesn’t worry, don’t worry