昨天，我跟汤姆很帮忙却不能去了。

Tom and I were busy yesterday and couldn't go.

Source: Tatoeba

Sentence Composition

1 昨天 zuótiān yesterday
2 我 wǒ
  1. I
  2. me
  3. my
3 跟 gēn
  1. heel
  2. to follow closely
  3. to go with
  4. (of a woman) to marry sb
  5. with
  6. compared with
  7. to
  8. towards
  9. and (joining two nouns)
4 汤姆 Tāngmǔ Tom (name)
5 很 hěn
  1. very; quite
  2. (also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)
6 帮忙 bāngmáng
  1. to help
  2. to lend a hand
  3. to do a favor
  4. to do a good turn
=7 却 què old variant of 却 què
=7 却 què
  1. but
  2. yet
  3. however
  4. while
  5. to go back
  6. to decline
  7. to retreat
  8. nevertheless
  9. even though
=7 却 qū
  1. to catch
  2. to dispel
  3. to hold up with both hands
8 不能 bùnéng
  1. cannot
  2. must not
  3. should not
9 去 qù
  1. to go
  2. to go to (a place)
  3. (of a time etc) last
  4. just passed
  5. to send
  6. to remove
  7. to get rid of
  8. to reduce
  9. to be apart from in space or time
  10. to die (euphemism)
  11. to play (a part)
  12. (when used either before or after a verb) to go in order to do sth
  13. (after a verb of motion indicates movement away from the speaker)
  14. (used after certain verbs to indicate detachment or separation)
=10 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=10 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 了 liǎo)
=10 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=10 了 liào unofficial variant of 瞭 liào