The mistake described in this example is phonological. This is because the error involves a systematic replacement of aspirated [p, t, k] with non-aspirated ones in the initial position before a vowel. For example, the word "pat" may be pronounced as "bat" or "cat" due to the lack of aspiration.

The mistake described in this example is also phonological. This is because there is a systematic replacement of [t, d] with the Russian [т, д] in both articulation and perception errors. For example, the word "dog" may be pronounced as "дог" due to the substitution of the English [d] with the Russian [д].

This mistake is phonetic. This is because the error involves the replacement of the English [r] with the Russian [р] in both articulation and perception errors. For example, the word "rabbit" may be pronounced as "раббит" due to the substitution of the English [r] with the Russian [р].

The mistake described in this example is phonetic. This is because the error involves the replacement of the 'dark' shade of [l] with the 'clear' variant in the final position. For example, the word "pool" may be pronounced as "poo" due to the substitution of the 'dark' [l] with the 'clear' variant.

This mistake is also phonetic. This is because the error involves the replacement of [θ, ð] with [f, v] in both articulation and speech perception errors. For example, the word "this" may be pronounced as "fis" due to the substitution of [θ] with [f].