你走得這麼快，我跟不上呀。

I can't keep up with you if you walk so fast.

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 走 zǒu
  1. to walk
  2. to go
  3. to run
  4. to move (of vehicle)
  5. to visit
  6. to leave
  7. to go away
  8. to die (euph.)
  9. from
  10. through
  11. away (in compound verbs, such as 撤走 chèzǒu)
  12. to change (shape, form, meaning)
=3 得 dé
  1. to obtain
  2. to get
  3. to gain
  4. to catch (a disease)
  5. proper
  6. suitable
  7. proud
  8. contented
  9. to allow
  10. to permit
  11. ready
  12. finished
=3 得 dè used in 得瑟 dèse
=3 得 de structural particle: used after a verb (or adjective as main verb), linking it to following phrase indicating effect, degree, possibility etc
=3 得 děi
  1. to have to
  2. must
  3. ought to
  4. to need to
4 這麼 zhème
  1. so much
  2. this much
  3. how much?
  4. this way
  5. like this
5 快 kuài
  1. rapid
  2. quick
  3. speed
  4. rate
  5. soon
  6. almost
  7. to make haste
  8. clever
  9. sharp (of knives or wits)
  10. forthright
  11. plainspoken
  12. gratified
  13. pleased
  14. pleasant
6 我 wǒ
  1. I
  2. me
  3. my
=7 跟不上 gēnbushàng not able to keep up with
=7 跟不上 gēnbùshàng
  1. to be not be as good as
  2. to be unable to keep up with
=8 呀 yā
  1. ah (used to express surprise)
  2. (onom.) creaking
=8 呀 ya (particle equivalent to 啊 after a vowel, expressing surprise or doubt)