Fear and Indefinite Clauses with the Subjunctive

I'm afraid that he will come
1. μὴ ἔλθῃ
2. εἶσιν
Whenever he comes, there is trouble.
1. ἐπεὶ ἔρχεται
2. ἐπειδὰν ἔλθῃ
Whoever sees it does not say.
1. ὅστις αὐτὸ ὁρᾷ
2. ὅστις ἂν αὐτὸ ἴδῃ
There is always the danger that it will not happen
1. μὴ οὐ γένηται
2. οὐ γενήσεται
Let's wait until the messenger arrives
1. ἐπεὶ ὁ ἄγγελος ἀφικνεῖται
2. ἕως ἂν ὁ ἄγγελος ἀφίκηται
The farmer was afraid that the enemy would come.
1. ὅτι οἱ πολέμιοι εἶσιν
2. μὴ οἱ πολέμιοι ἔλθωσιν
Whatever she says is not clear to us.
1. ὅ τι λέγει
2. ὅ τι ἂν λέγῃ
Whenever we return to Athens, he tells us what has happened.
1. ἐπειδὰν Ἀθήναζε ἐπανέλθωμεν
2. ἐπεὶ Ἀθήναζε ἐπανήλθομεν
She was afraid to see this.
1. τοῦτο ἰδεῖν
2. τοῦτο ὁρᾷ
The enemy did not fear to invade Africa.
1. εἰς τὴν Ἀττικὴν εἰσέβαλλον
2. εἰς τὴν Ἀττικὴν εἰσβᾶλλειν