1. He seldom tatoos roses on his arms.

2. He sometimes woos when he meets a pretty lady at a meeting.

3. He seldom tatooes roses on his arms.

4. He sometimes wooes when he meets a pretty lady at a meeting

(Which ones are grammatical?)

5. He tatooed a dragon on his body.
6. A dragon was tattoed on his body.
7. He wooed a lady yesterday.
8. He wooed to a lady yesterday.
(Are the expressions grammatical?)

Let's analyze each sentence to determine if they are grammatically correct:

1. He seldom tattoos roses on his arms.
This sentence is grammatically correct. The verb "tattoos" agrees with the subject "he," and "roses" functions as the direct object.

2. He sometimes woos when he meets a pretty lady at a meeting.
This sentence is grammatically correct. The verb "woos" agrees with the subject "he," and "when he meets a pretty lady at a meeting" serves as an adverbial clause.

3. He seldom tattoos roses on his arms.
This sentence is similar to sentence 1 and is grammatically correct. It is a repeat of sentence 1 to emphasize the rarity of the action.

4. He sometimes woos when he meets a pretty lady at a meeting.
This sentence is similar to sentence 2 and is grammatically correct. It is a repeat of sentence 2 to emphasize the occasional nature of the action.

Now, let's review the second set of sentences:

5. He tattooed a dragon on his body.
This sentence is grammatically correct. The verb "tattooed" is in the past tense, agreeing with the subject "he," and "a dragon" functions as the direct object.

6. A dragon was tattooed on his body.
This sentence is grammatically correct. It is written in the passive voice, with the subject "a dragon" becoming the object, and "was tattooed" functioning as the past tense of the verb.

7. He wooed a lady yesterday.
This sentence is grammatically correct. The verb "wooed" agrees with the subject "he," and "a lady" functions as the direct object.

8. He wooed to a lady yesterday.
This sentence is not grammatically correct. The verb "wooed" does not need the preposition "to" following it. Instead, it directly takes the direct object "a lady." Therefore, the correct sentence would be: "He wooed a lady yesterday."

To summarize:

Grammatically correct sentences are:
1. He seldom tattoos roses on his arms.
2. He sometimes woos when he meets a pretty lady at a meeting.
3. He seldom tattoos roses on his arms. (Same as sentence 1)
4. He sometimes woos when he meets a pretty lady at a meeting. (Same as sentence 2)
5. He tattooed a dragon on his body.
6. A dragon was tattooed on his body.
7. He wooed a lady yesterday.

The grammatically incorrect sentence is:
8. He wooed to a lady yesterday.