Don't mention it! [ dəʊnt ˈmɛnʃᵊn ɪt ]

Thank you in advance! [ θæŋk juː ɪn ədˈvɑːns ]

Thank you anyway! [ θæŋk juː ˈɛnɪweɪ ]

It's very kind of you! [ ɪts ˈvɛri kaɪnd ɒv juː ]

for a rainy day [ fɔːr ə ˈreɪni deɪ ]

under а cloud [ ˈʌndə а klaʊd ]

tough cookie [ tʌf ˈkʊki ]

smell a rat [ smɛl ə ræt ]

cash cow [ kæʃ kaʊ ]

Most unlikely [ məʊst ʌnˈlaɪkli ]

Not a bit [ nɒt ə bɪt ]

I believe so / suppose so [ aɪ bɪˈliːv səʊ / səˈpəʊz səʊ ]

I doubt it [ aɪ daʊt ɪt ]

No way [ nəʊ weɪ ]

the big time [ ðə bɪɡ taɪm ]

top dog [ tɒp dɒɡ ]

May I help you? [ meɪ aɪ hɛlp juː ]

No problem / that's ok! [ nəʊ ˈprɒbləm / ðæts ˈəʊˈkeɪ ]

Don't worry about it! [ dəʊnt ˈwʌri əˈbaʊt ɪt ]

This way, please! [ ðɪs weɪ, pliːz ]

After you! [ ˈɑːftə juː ]

big cheese [ bɪɡ ʧiːz ]

time flies [ taɪm flaɪz ]

Take care! [ teɪk keə ]

Have a nice day! [ hæv ə naɪs deɪ ]

Have a good weekend [ hæv ə ɡʊd ˈwiːkˈɛnd ]

Have a safe trip [ hæv ə seɪf trɪp ]

Say hi to … [ seɪ haɪ tuː ]

Send my love to … [ sɛnd maɪ lʌv tuː ]

be under the weather [ biː ˈʌndə ðə ˈwɛðə ]