Capital letters account for only five percent of all letters in written English. Therefore, pay more attention to teaching the lower case letters. One should not worry about the grammar in early stages. Preschoolers, kindergartners and first graders are very concrete in the way they think and cannot handle complicated concepts. Teach the child writing along with reading.
Children learn to read faster if they learn to write at the same time.
Limit the initial reading vocabulary. Reading is a very complex process. Teach only the simple and common words at first. Depending on their interpretation of the reading process, they have developed models of reading. Listening for the first sounds in words is an important step in learning to connect language and reading.