1. The Uses of the Conjunction while

a. during the time that sth ishappening

b. at the same time as sth ishappening

c. as long as

d. used to contrast two things

2. Object

Definition:

 An object is the recipient of an action  which often follows a  transitive verb or a preposition. What canfunction as object are nouns, pronouns, numerals, infinitive phrases, gerund,noun clauses, etc.

Example:

 Do you know where he lives?

Verbs that are often followed byan infinitive phrase as object:

Afford  attempt arrange  beg  choose claim  dare  decide seek

Decline  determine expect  fail  intend long  manage  offer undertake

Verbs that are often followed bywh-word plus an infinitive phrase as object:

ask  consider decide  discover  discuss explain  find out  forget inquire

know  learn show  tell  understand wonder  undertake

when/where/why/who/whom/how/whether…to do

Verbs that are often followed by agerund  as object:

admit  avoid consider  delay  deny escape  excuse  fancy imagine  mind  miss

dislike  permit postpone  practice  risk suggest  undertake

Phrasesthat are often followed by a gerund  asobject:

amountto   be up to   be equal to  cut down on   feel like   giveup

lookforward to    object to     put off stand up to