Is it okay to use "when" immediately followed by a verb ending with -ing?
For example:
- When climbing the hill,...
- When writing a book,...
Is it okay to use "when" immediately followed by a verb ending with -ing?
For example:
- When climbing the hill,...
- When writing a book,...
The construction when + -ing form + complement is acceptable, and very common in written English. It is not often encountered in spoken English, however, which generally prefers a finite clause:
Be careful in using this construction that you do not create a dangling participle. The implied subject of the verb must be the same as the clause to which the when-clause is subordinated.
ok When climbing the hill they discovered an ancient footpath. ...
∗ When climbing the hill, John stayed behind to explore the ruined hut.
∗ marks an utterance as unacceptable.
Grammatically when here means while, and it functions as a conjunction.
conjunction = a word that is used to connect parts of sentences , phrases or
clauses like" but" , " and " or" while " .