5. перепишите следующие предложения,определите в них временные формы глаголов. укажите их инфинитив. 1. the two nethods of payment are very often combined in a contract. 2. i know that everything depends on me and my abilities. 3. the contract had been signed before we came.

1. are combined (to combine) - Present Simple Passive.
2. know (to know) - Present Simple Active
depends (to depend) - Present Simple Active
3. had been signed (to sign) - Past Perfect Passive