- It is time......
It is time you looked for a job.
Note: Don't forget to use past tense.
Though/Although means the same. For example,
1.The fishermen are poor though...... The fishermen are poor though they work hard.
- He finished early although...... He finished early although he began late.
As/since/because means the same. To express a reason or because we may use any of them. As/since can be placed in the beginning or in the middle of a sentence. 'Because' is used only in the middle of a sentence.
- He was punished as.... He was punished as he told a lie.
- ........we could not catch the train. Since/As we started late , we could not catch the train.
- He could not pass the examination....... He could not pass the examination as/since/because he neglected his studies.
'Unless' means 'if not'. 'Unless' expresses a negative sense and so we` cannot use 'not' with it.
- You will miss the train unless......You will miss the train unless you start now.
2...........we will be late. Unless we make haste, we will be late.
In order that (purpose)
'In order that', 'that', or 'so that' are used to express a purpose. They mean the same.
Structure: Principal clause + in order that + sub+ may/might, can/could+ verb +other words.
- We go to market in order that...... We go to market in order that we may buy things.
- We visited the flood-affected areas in order that......We visited the flood-affected areas in order that we could distribute relief goods among the flood-victims.