1. Force yourself to listen for s sounds as you write. In speaking, we sometimes drop these sounds as we fade one word into another. Because of this, we may forget the sounds are even there. Thus, we fail to make our subjects and verbs agree. Listening for those s sounds is the real key to getting rid of most agreement problems.
2. Don't be misled by false subjects. Be sure the word you make your verb agree with is actually the subject of the clause, not just another noun.
Change:
| Those tomatoes from my brother looks juicy. |
to:
| Those tomatoes from my brother look juicy. |
The first sentence gives mixed signals because the verb has been made to agree with the false subject "brother" rather than the true subject, "tomatoes." Here's another example of the false subject.
Change: | Forgetting your tickets cause problems. |
to:
| Forgetting your tickets causes problems. |
At first glance "tickets" may look like the subject, but a moment's reflection tells us that "forgetting your tickets" causes problems, not the tickets themselves. Whenever such a verb phrase serves as the subject, consider it singular.
3. Treat collectives as singulars. Collective nouns identify a group: a team, a platoon, a class, a congregation, a family. Treat broadly inclusive nouns such as "nobody," "everybody," "anyone," "each," and "everyone" as singular also.
Change: | My family like to go to church together. |
to:
| My family likes to go to church together. |
Even if the family has eight or nine people, it is still only one thing; therefore, it is considered singular.