1. "We are surprised at their having won the match." The predicative construction in this sentence is "surprised at their having won the match". This construction consists of the verb "surprised" and the prepositional phrase "at their having won the match", that functions as the complement of the verb. The prepositional phrase contains a gerund clause "having won the match", which acts as the subject complement of the verb "be". The function of this construction is to express the speaker's feeling of surprise towards the action performed by the subject ("their having won the match"). 2. "He saw his father leave the house in the morning." The predicative construction in this sentence is "saw his father leave the house in the morning". This construction consists of the verb "saw" and the noun phrase "his father leave the house in the morning", that functions as the direct object of the verb. The noun phrase contains a verbless clause "his father leave the house in the morning", which acts as the complement of the verb. The function of this construction is to describe the action witnessed by the subject ("his father leave the house in the morning"). 3. "She seemed not to listen to him." The predicative construction in this sentence is "seemed not to listen to him". This construction consists of the verb "seemed" and the infinitive phrase "not to listen to him", that functions as the complement of the verb. The infinitive phrase contains a verbless clause "not to listen to him", which acts as the direct object of the infinitive "to listen". The function of this construction is to express the speaker's belief or opinion about the subject's behavior ("she seemed not to listen to him"). 4. "She found the old man sitting at breakfast." The predicative construction in this sentence is "found the old man sitting at breakfast". This construction consists of the verb "found" and the noun phrase "the old man sitting at breakfast", that functions as the direct object of the verb. The noun phrase contains a verbless clause "the old man sitting at breakfast", which acts as the complement of the verb. The function of this construction is to describe the scene or state observed by the subject ("she found the old man sitting at breakfast"). 5. "It is necessary for us to take a taxi." The predicative construction in this sentence is "necessary for us to take a taxi". This construction consists of the copula verb "is", the adjective "necessary", and the prepositional phrase "for us to take a taxi", that functions as the complement of the copula verb. The prepositional phrase contains an infinitive clause "to take a taxi", which acts as the object of the preposition "for". The function of this construction is to express the requirement or obligation for the subject to perform a certain action ("it is necessary for us to take a taxi").