| question is(expression, cause, reason, because) |
| reason is that(expression, cause, reason, therefore) |
| since(conjunction, cause, because, on account of) |
| thanks to(conjunction, cause, because, on account of) |
| that is because(expression, cause, reason, because) |
| thence(adverb, reason, because, due to) |
| thereby(adverb, reason, because, due to) |
| this happens because(expression, cause, reason, because) |
| this has to do with the fact(expression, cause, reason, because) |
| this is due to the fact that(expression, cause, reason, because) |
| this is related to the fact(expression, cause, reason, because) |
| this owes to(expression, reason, explain, happened) |
| through(conjunction, cause, because, on account of) |
| thus occurs because(expression, cause, reason, because) |
| truth is that(expression, cause, reason, because) |
| what happens is(expression, cause, reason, because) |
| whence(adverb, reason, because, due to) |
| whereas(conjunction, cause, because, on account of) |
| wherefore(adverb, reason, because, due to) |