Правильно ли я составлены предложения?

He once had a full-time Job as a guide

My freand gave me the knife as a present for long memory

The two teams play nicely. They do it as if wings they have

Once, he had a full-time job as a guide.

My friend gave me the knife as a present for a long memory.

The two teams play nicely. They do it as they have wings.