Epistulae VI 16 6-7

1a First Main Clause Begins
2       Participial Phrase Begins
1b First Main Clause Concludes
1c Second Main Clause
3a       Causal Clause Begins
4a            Participial Phrase
4b            Participial Phrase
4d            Participial Phrase
3b       Causal Clause Concludes
5a            Adjectival Phrase Begins
5b            Adjectival Phrase Concludes
6       Temporal Clause
1 Main Clause (supply erat with nōscendum)
2       Temporal Clause (supply est with vīsum)
1 First Main Clause
2       Infinitive Phrase
1b Second Main Clause Begins
3       Conditional Clause
1c Second Main Clause Concludes
1d Third Main Clause
4       Indirect Statement
1e Fourth Main Clause Begins
5       Relative Clause of Characteristic
1f Fourth Main Clause Concludes