FUTURE TIME
Active Passive
Singular Singular
I shall see. I shall be seen.
You will see. You will be seen.
He will see. He will be seen.
Plural Plural
We shall see. We shall be seen.
You will see. You will be seen.
They will see. They will be seen.

Then you remember we had to devise a way of describing an action perfected or completed at the present or at some time in the past or at some time in the future—so we have present perfect, past perfect and future perfect.

PRESENT PERFECT
Active Passive
Singular Singular
I have seen. I have been seen.
You have seen. You have been seen.
He has seen. He has been seen.
Plural Plural
We have seen. We have been seen.
You have seen. You have been seen.
They have seen. They have been seen.
PAST PERFECT
Active Passive
Singular Singular
I had seen. I had been seen.
You had seen. You had been seen.
He had seen. He had been seen.
Plural Plural
We had seen. We had been seen.
You had seen. You had been seen.
They had seen. They had been seen.
FUTURE PERFECT
Active Passive
Singular Singular
I shall have seen. I shall have been seen.
You will have seen. You will have been seen.
He will have seen. He will have been seen.
Plural Plural
We shall have seen. We shall have been seen.
You will have seen. You will have been seen.
They will have seen. They will have been seen.

146. But these are not all the phases of time which we can express. We have progressive, continuous action. So each of these six time forms has a progressive form.

PRESENT PROGRESSIVE
Active Passive
Singular Singular
I am seeing. I am being seen.
You are seeing. You are being seen.
He is seeing. He is being seen.
Plural Plural
We are seeing. We are being seen.
You are seeing. You are being seen.
They are seeing. They are being seen.
PAST PROGRESSIVE
Active Passive
Singular Singular
I was seeing. I was being seen.
You were seeing. You were being seen.
He was seeing. He was being seen.
Plural Plural
We were seeing. We were being seen.
You were seeing. You were being seen.
They were seeing. They were being seen.

Only the Present and Past Progressive forms have a passive form. The rest of the Progressive forms are expressed in the active forms only.