1. He continued working for a long time.

2. He continued working for long.
3. He continued working for ages.
4. He continued working in ages.
5. He continued working for such a long time.
6.
7.
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Can we use all the expressions instead of 'for a long time'? Do you have some more expressions which have the same meaning?

1. He continued working for a long time.

2. He continued working for quite a while.
3. He continued working for ages.
4. He continued working for an extended period.
5. He continued working for such a long time.
6. He kept on working for hours on end.
7. He persisted in working for a lengthy duration.

All of these expressions can be used to convey a similar meaning as 'for a long time.' Some might have slightly different nuances, but they all imply that the person worked for an extended period.

Yes, all of the expressions you provided convey a similar meaning to "for a long time." However, there are additional expressions you can use that have the same or similar meaning:

1. He continued working for an extended period.
2. He continued working for a considerable duration.
3. He continued working for a prolonged period.
4. He continued working for an extensive amount of time.
5. He continued working for an interminable length of time.

It's important to note that the context in which these expressions are used may vary, so be sure to choose the one that best fits the intended meaning and tone of your sentence.

1. Yes, you can use all the expressions you provided as alternatives to "for a long time" to convey the same meaning. However, I would like to make a slight correction to sentence 4. It should be "He hadn't worked in ages" to convey the idea that he had not been working for a very long time.

Additionally, here are a few more expressions that can be used interchangeably with "for a long time" to convey a similar meaning:

- He continued working for an extended period.
- He continued working for a considerable amount of time.
- He continued working for a substantial duration.
- He continued working for a prolonged period of time.
- He continued working for an extensive period.
- He continued working for a significant stretch.

These expressions all convey the idea of someone working for a considerable or lengthy period without specifying exactly how long.