believe in someone

I believe in my friend.

私は友達を信じてあげます

I believe in my friend even in a hard situation.

私は難しい状況でも友達を信じてあげます

I believe in my friend to the very end even in a hard situation.

私は難しい状況でも最後まで友達を信じてあげます

I sincerely believe in my friend to the very end even in a hard situation.

私は難しい状況でも最後まで心から友達を信じてあげます

I sincerely believe in my friend to the very end without any conditions, even in a hard situation.

私は難しい状況でも最後まで心から何の条件もなく友達を信じてあげます